content/renderer/npapi/webplugin_delegate_proxy.cc

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "content/renderer/npapi/webplugin_delegate_proxy.h"
   6
   7 #include <algorithm>
   8
   9 #include "base/auto_reset.h"
  10 #include "base/basictypes.h"
  11 #include "base/command_line.h"
  12 #include "base/files/file_util.h"
  13 #include "base/logging.h"
  14 #include "base/memory/ref_counted.h"
  15 #include "base/memory/scoped_ptr.h"
  16 #include "base/process/process.h"
  17 #include "base/strings/string_split.h"
  18 #include "base/strings/string_util.h"
  19 #include "base/strings/utf_string_conversions.h"
  20 #include "base/version.h"
  21 #include "cc/resources/shared_bitmap.h"
  22 #include "content/child/child_process.h"
  23 #include "content/child/child_shared_bitmap_manager.h"
  24 #include "content/child/npapi/npobject_proxy.h"
  25 #include "content/child/npapi/npobject_stub.h"
  26 #include "content/child/npapi/npobject_util.h"
  27 #include "content/child/npapi/webplugin_resource_client.h"
  28 #include "content/child/plugin_messages.h"
  29 #include "content/common/content_constants_internal.h"
  30 #include "content/common/cursors/webcursor.h"
  31 #include "content/common/frame_messages.h"
  32 #include "content/common/view_messages.h"
  33 #include "content/public/renderer/content_renderer_client.h"
  34 #include "content/renderer/npapi/plugin_channel_host.h"
  35 #include "content/renderer/npapi/webplugin_impl.h"
  36 #include "content/renderer/render_thread_impl.h"
  37 #include "content/renderer/render_view_impl.h"
  38 #include "content/renderer/sad_plugin.h"
  39 #include "ipc/ipc_channel_handle.h"
  40 #include "net/base/mime_util.h"
  41 #include "skia/ext/platform_canvas.h"
  42 #include "third_party/WebKit/public/platform/WebDragData.h"
  43 #include "third_party/WebKit/public/platform/WebString.h"
  44 #include "third_party/WebKit/public/web/WebBindings.h"
  45 #include "third_party/WebKit/public/web/WebDocument.h"
  46 #include "third_party/WebKit/public/web/WebFrame.h"
  47 #include "third_party/WebKit/public/web/WebView.h"
  48 #include "ui/gfx/blit.h"
  49 #include "ui/gfx/canvas.h"
  50 #include "ui/gfx/geometry/size.h"
  51 #include "ui/gfx/native_widget_types.h"
  52 #include "ui/gfx/skia_util.h"
  53
  54 #if defined(OS_POSIX)
  55 #include "ipc/ipc_channel_posix.h"
  56 #endif
  57
  58 #if defined(OS_WIN)
  59 #include "base/win/scoped_handle.h"
  60 #include "content/public/common/sandbox_init.h"
  61 #endif
  62
  63 using blink::WebBindings;
  64 using blink::WebCursorInfo;
  65 using blink::WebDragData;
  66 using blink::WebInputEvent;
  67 using blink::WebString;
  68 using blink::WebView;
  69
  70 namespace content {
  71
  72 namespace {
  73
  74 class ScopedLogLevel {
  75  public:
  76   explicit ScopedLogLevel(int level);
  77   ~ScopedLogLevel();
  78
  79  private:
  80   int old_level_;
  81
  82   DISALLOW_COPY_AND_ASSIGN(ScopedLogLevel);
  83 };
  84
  85 ScopedLogLevel::ScopedLogLevel(int level)
  86     : old_level_(logging::GetMinLogLevel()) {
  87   logging::SetMinLogLevel(level);
  88 }
  89
  90 ScopedLogLevel::~ScopedLogLevel() {
  91   logging::SetMinLogLevel(old_level_);
  92 }
  93
  94 // Proxy for WebPluginResourceClient.  The object owns itself after creation,
  95 // deleting itself after its callback has been called.
  96 class ResourceClientProxy : public WebPluginResourceClient {
  97  public:
  98   ResourceClientProxy(PluginChannelHost* channel, int instance_id)
  99     : channel_(channel), instance_id_(instance_id), resource_id_(0),
 100       multibyte_response_expected_(false) {
 101   }
 102
 103   ~ResourceClientProxy() override {}
 104
 105   void Initialize(unsigned long resource_id, const GURL& url, int notify_id) {
 106     resource_id_ = resource_id;
 107     channel_->Send(new PluginMsg_HandleURLRequestReply(
 108         instance_id_, resource_id, url, notify_id));
 109   }
 110
 111   void InitializeForSeekableStream(unsigned long resource_id,
 112                                    int range_request_id) {
 113     resource_id_ = resource_id;
 114     multibyte_response_expected_ = true;
 115     channel_->Send(new PluginMsg_HTTPRangeRequestReply(
 116         instance_id_, resource_id, range_request_id));
 117   }
 118
 119   // PluginResourceClient implementation:
 120   void WillSendRequest(const GURL& url, int http_status_code) override {
 121     DCHECK(channel_.get() != NULL);
 122     channel_->Send(new PluginMsg_WillSendRequest(
 123         instance_id_, resource_id_, url, http_status_code));
 124   }
 125
 126   void DidReceiveResponse(const std::string& mime_type,
 127                           const std::string& headers,
 128                           uint32 expected_length,
 129                           uint32 last_modified,
 130                           bool request_is_seekable) override {
 131     DCHECK(channel_.get() != NULL);
 132     PluginMsg_DidReceiveResponseParams params;
 133     params.id = resource_id_;
 134     params.mime_type = mime_type;
 135     params.headers = headers;
 136     params.expected_length = expected_length;
 137     params.last_modified = last_modified;
 138     params.request_is_seekable = request_is_seekable;
 139     // Grab a reference on the underlying channel so it does not get
 140     // deleted from under us.
 141     scoped_refptr<PluginChannelHost> channel_ref(channel_);
 142     channel_->Send(new PluginMsg_DidReceiveResponse(instance_id_, params));
 143   }
 144
 145   void DidReceiveData(const char* buffer,
 146                       int length,
 147                       int data_offset) override {
 148     DCHECK(channel_.get() != NULL);
 149     DCHECK_GT(length, 0);
 150     std::vector<char> data;
 151     data.resize(static_cast<size_t>(length));
 152     memcpy(&data.front(), buffer, length);
 153     // Grab a reference on the underlying channel so it does not get
 154     // deleted from under us.
 155     scoped_refptr<PluginChannelHost> channel_ref(channel_);
 156     channel_->Send(new PluginMsg_DidReceiveData(instance_id_, resource_id_,
 157                                                 data, data_offset));
 158   }
 159
 160   void DidFinishLoading(unsigned long resource_id) override {
 161     DCHECK(channel_.get() != NULL);
 162     DCHECK_EQ(resource_id, resource_id_);
 163     channel_->Send(new PluginMsg_DidFinishLoading(instance_id_, resource_id_));
 164     channel_ = NULL;
 165     base::MessageLoop::current()->DeleteSoon(FROM_HERE, this);
 166   }
 167
 168   void DidFail(unsigned long resource_id) override {
 169     DCHECK(channel_.get() != NULL);
 170     DCHECK_EQ(resource_id, resource_id_);
 171     channel_->Send(new PluginMsg_DidFail(instance_id_, resource_id_));
 172     channel_ = NULL;
 173     base::MessageLoop::current()->DeleteSoon(FROM_HERE, this);
 174   }
 175
 176   bool IsMultiByteResponseExpected() override {
 177     return multibyte_response_expected_;
 178   }
 179
 180   int ResourceId() override { return resource_id_; }
 181
 182  private:
 183   scoped_refptr<PluginChannelHost> channel_;
 184   int instance_id_;
 185   unsigned long resource_id_;
 186   // Set to true if the response expected is a multibyte response.
 187   // For e.g. response for a HTTP byte range request.
 188   bool multibyte_response_expected_;
 189 };
 190
 191 }  // namespace
 192
 193 WebPluginDelegateProxy::WebPluginDelegateProxy(
 194     WebPluginImpl* plugin,
 195     const std::string& mime_type,
 196     const base::WeakPtr<RenderViewImpl>& render_view,
 197     RenderFrameImpl* render_frame)
 198     : render_view_(render_view),
 199       render_frame_(render_frame),
 200       plugin_(plugin),
 201       uses_shared_bitmaps_(false),
 202 #if defined(OS_MACOSX)
 203       uses_compositor_(false),
 204 #elif defined(OS_WIN)
 205       dummy_activation_window_(NULL),
 206 #endif
 207       window_(gfx::kNullPluginWindow),
 208       mime_type_(mime_type),
 209       instance_id_(MSG_ROUTING_NONE),
 210       npobject_(NULL),
 211       npp_(new NPP_t),
 212       sad_plugin_(NULL),
 213       invalidate_pending_(false),
 214       transparent_(false),
 215       front_buffer_index_(0),
 216       page_url_(render_view_->webview()->mainFrame()->document().url()) {
 217 }
 218
 219 WebPluginDelegateProxy::~WebPluginDelegateProxy() {
 220   if (npobject_)
 221     WebBindings::releaseObject(npobject_);
 222 }
 223
 224 WebPluginDelegateProxy::SharedBitmap::SharedBitmap() {}
 225
 226 WebPluginDelegateProxy::SharedBitmap::~SharedBitmap() {}
 227
 228 void WebPluginDelegateProxy::PluginDestroyed() {
 229 #if defined(OS_MACOSX) || defined(OS_WIN)
 230   // Ensure that the renderer doesn't think the plugin still has focus.
 231   if (render_view_)
 232     render_view_->PluginFocusChanged(false, instance_id_);
 233 #endif
 234
 235 #if defined(OS_WIN)
 236   if (dummy_activation_window_ && render_view_) {
 237     render_view_->Send(new ViewHostMsg_WindowlessPluginDummyWindowDestroyed(
 238         render_view_->routing_id(), dummy_activation_window_));
 239   }
 240   dummy_activation_window_ = NULL;
 241 #endif
 242
 243   if (window_)
 244     WillDestroyWindow();
 245
 246   if (render_view_.get())
 247     render_view_->UnregisterPluginDelegate(this);
 248
 249   if (channel_host_.get()) {
 250     Send(new PluginMsg_DestroyInstance(instance_id_));
 251
 252     // Must remove the route after sending the destroy message, rather than
 253     // before, since RemoveRoute can lead to all the outstanding NPObjects
 254     // being told the channel went away if this was the last instance.
 255     channel_host_->RemoveRoute(instance_id_);
 256
 257     // Remove the mapping between our instance-Id and NPP identifiers, used by
 258     // the channel to track object ownership, before releasing it.
 259     channel_host_->RemoveMappingForNPObjectOwner(instance_id_);
 260
 261     // Release the channel host now. If we are is the last reference to the
 262     // channel, this avoids a race where this renderer asks a new connection to
 263     // the same plugin between now and the time 'this' is actually deleted.
 264     // Destroying the channel host is what releases the channel name -> FD
 265     // association on POSIX, and if we ask for a new connection before it is
 266     // released, the plugin will give us a new FD, and we'll assert when trying
 267     // to associate it with the channel name.
 268     channel_host_ = NULL;
 269   }
 270
 271   plugin_ = NULL;
 272
 273   base::MessageLoop::current()->DeleteSoon(FROM_HERE, this);
 274 }
 275
 276 bool WebPluginDelegateProxy::Initialize(
 277     const GURL& url,
 278     const std::vector<std::string>& arg_names,
 279     const std::vector<std::string>& arg_values,
 280     bool load_manually) {
 281   // TODO(shess): Attempt to work around http://crbug.com/97285 and
 282   // http://crbug.com/141055 by retrying the connection.  Reports seem
 283   // to indicate that the plugin hasn't crashed, and that the problem
 284   // is not 100% persistent.
 285   const size_t kAttempts = 2;
 286
 287   bool result = false;
 288   scoped_refptr<PluginChannelHost> channel_host;
 289   int instance_id = 0;
 290
 291   for (size_t attempt = 0; !result && attempt < kAttempts; attempt++) {
 292 #if defined(OS_MACOSX)
 293     // TODO(shess): Debugging for http://crbug.com/97285 .  See comment
 294     // in plugin_channel_host.cc.
 295     scoped_ptr<base::AutoReset<bool> > track_nested_removes(
 296         new base::AutoReset<bool>(PluginChannelHost::GetRemoveTrackingFlag(),
 297                                   true));
 298 #endif
 299
 300     IPC::ChannelHandle channel_handle;
 301     if (!RenderThreadImpl::current()->Send(new FrameHostMsg_OpenChannelToPlugin(
 302             render_frame_->GetRoutingID(), url, page_url_, mime_type_,
 303             &channel_handle, &info_))) {
 304       continue;
 305     }
 306
 307     if (channel_handle.name.empty()) {
 308       // We got an invalid handle.  Either the plugin couldn't be found (which
 309       // shouldn't happen, since if we got here the plugin should exist) or the
 310       // plugin crashed on initialization.
 311       if (!info_.path.empty()) {
 312         render_view_->GetMainRenderFrame()->PluginCrashed(
 313             info_.path, base::kNullProcessId);
 314         LOG(ERROR) << "Plugin crashed on start";
 315
 316         // Return true so that the plugin widget is created and we can paint the
 317         // crashed plugin there.
 318         return true;
 319       }
 320       LOG(ERROR) << "Plugin couldn't be found";
 321       return false;
 322     }
 323
 324     channel_host = PluginChannelHost::GetPluginChannelHost(
 325         channel_handle, ChildProcess::current()->io_task_runner());
 326     if (!channel_host.get()) {
 327       LOG(ERROR) << "Couldn't get PluginChannelHost";
 328       continue;
 329     }
 330 #if defined(OS_MACOSX)
 331     track_nested_removes.reset();
 332 #endif
 333
 334     {
 335       // TODO(bauerb): Debugging for http://crbug.com/141055.
 336       ScopedLogLevel log_level(-2);  // Equivalent to --v=2
 337       result = channel_host->Send(new PluginMsg_CreateInstance(
 338           mime_type_, &instance_id));
 339       if (!result) {
 340         LOG(ERROR) << "Couldn't send PluginMsg_CreateInstance";
 341         continue;
 342       }
 343     }
 344   }
 345
 346   // Failed too often, give up.
 347   if (!result)
 348     return false;
 349
 350   channel_host_ = channel_host;
 351   instance_id_ = instance_id;
 352
 353   channel_host_->AddRoute(instance_id_, this, NULL);
 354
 355   // Inform the channel of the mapping between our instance-Id and dummy NPP
 356   // identifier, for use in object ownership tracking.
 357   channel_host_->AddMappingForNPObjectOwner(instance_id_, GetPluginNPP());
 358
 359   // Now tell the PluginInstance in the plugin process to initialize.
 360   PluginMsg_Init_Params params;
 361   params.url = url;
 362   params.page_url = page_url_;
 363   params.arg_names = arg_names;
 364   params.arg_values = arg_values;
 365   params.host_render_view_routing_id = render_view_->routing_id();
 366   params.load_manually = load_manually;
 367
 368   result = false;
 369   Send(new PluginMsg_Init(instance_id_, params, &transparent_, &result));
 370
 371   if (!result)
 372     LOG(WARNING) << "PluginMsg_Init returned false";
 373
 374   render_view_->RegisterPluginDelegate(this);
 375
 376   return result;
 377 }
 378
 379 bool WebPluginDelegateProxy::Send(IPC::Message* msg) {
 380   if (!channel_host_.get()) {
 381     DLOG(WARNING) << "dropping message because channel host is null";
 382     delete msg;
 383     return false;
 384   }
 385
 386   return channel_host_->Send(msg);
 387 }
 388
 389 void WebPluginDelegateProxy::SendJavaScriptStream(const GURL& url,
 390                                                   const std::string& result,
 391                                                   bool success,
 392                                                   int notify_id) {
 393   Send(new PluginMsg_SendJavaScriptStream(
 394       instance_id_, url, result, success, notify_id));
 395 }
 396
 397 void WebPluginDelegateProxy::DidReceiveManualResponse(
 398     const GURL& url, const std::string& mime_type,
 399     const std::string& headers, uint32 expected_length,
 400     uint32 last_modified) {
 401   PluginMsg_DidReceiveResponseParams params;
 402   params.id = 0;
 403   params.mime_type = mime_type;
 404   params.headers = headers;
 405   params.expected_length = expected_length;
 406   params.last_modified = last_modified;
 407   Send(new PluginMsg_DidReceiveManualResponse(instance_id_, url, params));
 408 }
 409
 410 void WebPluginDelegateProxy::DidReceiveManualData(const char* buffer,
 411                                                   int length) {
 412   DCHECK_GT(length, 0);
 413   std::vector<char> data;
 414   data.resize(static_cast<size_t>(length));
 415   memcpy(&data.front(), buffer, length);
 416   Send(new PluginMsg_DidReceiveManualData(instance_id_, data));
 417 }
 418
 419 void WebPluginDelegateProxy::DidFinishManualLoading() {
 420   Send(new PluginMsg_DidFinishManualLoading(instance_id_));
 421 }
 422
 423 void WebPluginDelegateProxy::DidManualLoadFail() {
 424   Send(new PluginMsg_DidManualLoadFail(instance_id_));
 425 }
 426
 427 bool WebPluginDelegateProxy::OnMessageReceived(const IPC::Message& msg) {
 428   GetContentClient()->SetActiveURL(page_url_);
 429
 430   bool handled = true;
 431   IPC_BEGIN_MESSAGE_MAP(WebPluginDelegateProxy, msg)
 432     IPC_MESSAGE_HANDLER(PluginHostMsg_SetWindow, OnSetWindow)
 433     IPC_MESSAGE_HANDLER(PluginHostMsg_CancelResource, OnCancelResource)
 434     IPC_MESSAGE_HANDLER(PluginHostMsg_InvalidateRect, OnInvalidateRect)
 435     IPC_MESSAGE_HANDLER(PluginHostMsg_GetWindowScriptNPObject,
 436                         OnGetWindowScriptNPObject)
 437     IPC_MESSAGE_HANDLER(PluginHostMsg_GetPluginElement, OnGetPluginElement)
 438     IPC_MESSAGE_HANDLER(PluginHostMsg_ResolveProxy, OnResolveProxy)
 439     IPC_MESSAGE_HANDLER(PluginHostMsg_SetCookie, OnSetCookie)
 440     IPC_MESSAGE_HANDLER(PluginHostMsg_GetCookies, OnGetCookies)
 441     IPC_MESSAGE_HANDLER(PluginHostMsg_URLRequest, OnHandleURLRequest)
 442     IPC_MESSAGE_HANDLER(PluginHostMsg_CancelDocumentLoad, OnCancelDocumentLoad)
 443     IPC_MESSAGE_HANDLER(PluginHostMsg_InitiateHTTPRangeRequest,
 444                         OnInitiateHTTPRangeRequest)
 445     IPC_MESSAGE_HANDLER(PluginHostMsg_DidStartLoading, OnDidStartLoading)
 446     IPC_MESSAGE_HANDLER(PluginHostMsg_DidStopLoading, OnDidStopLoading)
 447     IPC_MESSAGE_HANDLER(PluginHostMsg_DeferResourceLoading,
 448                         OnDeferResourceLoading)
 449     IPC_MESSAGE_HANDLER(PluginHostMsg_URLRedirectResponse,
 450                         OnURLRedirectResponse)
 451     IPC_MESSAGE_HANDLER(PluginHostMsg_CheckIfRunInsecureContent,
 452                         OnCheckIfRunInsecureContent)
 453 #if defined(OS_WIN)
 454     IPC_MESSAGE_HANDLER(PluginHostMsg_SetWindowlessData, OnSetWindowlessData)
 455     IPC_MESSAGE_HANDLER(PluginHostMsg_NotifyIMEStatus, OnNotifyIMEStatus)
 456 #endif
 457 #if defined(OS_MACOSX)
 458     IPC_MESSAGE_HANDLER(PluginHostMsg_FocusChanged,
 459                         OnFocusChanged);
 460     IPC_MESSAGE_HANDLER(PluginHostMsg_StartIme,
 461                         OnStartIme);
 462     IPC_MESSAGE_HANDLER(PluginHostMsg_AcceleratedPluginEnabledRendering,
 463                         OnAcceleratedPluginEnabledRendering)
 464     IPC_MESSAGE_HANDLER(PluginHostMsg_AcceleratedPluginAllocatedIOSurface,
 465                         OnAcceleratedPluginAllocatedIOSurface)
 466     IPC_MESSAGE_HANDLER(PluginHostMsg_AcceleratedPluginSwappedIOSurface,
 467                         OnAcceleratedPluginSwappedIOSurface)
 468 #endif
 469     IPC_MESSAGE_UNHANDLED(handled = false)
 470   IPC_END_MESSAGE_MAP()
 471   DCHECK(handled);
 472   return handled;
 473 }
 474
 475 void WebPluginDelegateProxy::OnChannelError() {
 476   if (plugin_) {
 477     if (window_) {
 478       // The actual WebPluginDelegate never got a chance to tell the WebPlugin
 479       // its window was going away. Do it on its behalf.
 480       WillDestroyWindow();
 481     }
 482     plugin_->Invalidate();
 483   }
 484   if (channel_host_.get() && !channel_host_->expecting_shutdown()) {
 485     render_view_->GetMainRenderFrame()->PluginCrashed(
 486         info_.path, channel_host_->peer_pid());
 487   }
 488
 489 #if defined(OS_MACOSX) || defined(OS_WIN)
 490   // Ensure that the renderer doesn't think the plugin still has focus.
 491   if (render_view_)
 492     render_view_->PluginFocusChanged(false, instance_id_);
 493 #endif
 494 }
 495
 496 static void CopySharedMemoryHandleForMessage(
 497     const base::SharedMemoryHandle& handle_in,
 498     base::SharedMemoryHandle* handle_out,
 499     base::ProcessId peer_pid) {
 500 #if defined(OS_POSIX)
 501   *handle_out = base::SharedMemory::DuplicateHandle(handle_in);
 502 #elif defined(OS_WIN)
 503   // On Windows we need to duplicate the handle for the plugin process.
 504   *handle_out = NULL;
 505   BrokerDuplicateHandle(handle_in, peer_pid, handle_out,
 506                         FILE_MAP_READ | FILE_MAP_WRITE, 0);
 507   DCHECK(*handle_out != NULL);
 508 #else
 509 #error Shared memory copy not implemented.
 510 #endif
 511 }
 512
 513 void WebPluginDelegateProxy::SendUpdateGeometry(
 514     bool bitmaps_changed) {
 515   if (!channel_host_.get())
 516     return;
 517
 518   PluginMsg_UpdateGeometry_Param param;
 519   param.window_rect = plugin_rect_;
 520   param.clip_rect = clip_rect_;
 521   param.windowless_buffer0 = base::SharedMemory::NULLHandle();
 522   param.windowless_buffer1 = base::SharedMemory::NULLHandle();
 523   param.windowless_buffer_index = back_buffer_index();
 524
 525 #if defined(OS_POSIX)
 526   // If we're using POSIX mmap'd TransportDIBs, sending the handle across
 527   // IPC establishes a new mapping rather than just sending a window ID,
 528   // so only do so if we've actually changed the shared memory bitmaps.
 529   if (bitmaps_changed)
 530 #endif
 531   {
 532     if (transport_stores_[0].bitmap)
 533       CopySharedMemoryHandleForMessage(
 534           transport_stores_[0].bitmap->shared_memory()->handle(),
 535           &param.windowless_buffer0, channel_host_->peer_pid());
 536
 537     if (transport_stores_[1].bitmap)
 538       CopySharedMemoryHandleForMessage(
 539           transport_stores_[1].bitmap->shared_memory()->handle(),
 540           &param.windowless_buffer1, channel_host_->peer_pid());
 541   }
 542
 543   IPC::Message* msg;
 544 #if defined(OS_WIN)
 545   if (UseSynchronousGeometryUpdates()) {
 546     msg = new PluginMsg_UpdateGeometrySync(instance_id_, param);
 547   } else  // NOLINT
 548 #endif
 549   {
 550     msg = new PluginMsg_UpdateGeometry(instance_id_, param);
 551     msg->set_unblock(true);
 552   }
 553
 554   Send(msg);
 555 }
 556
 557 void WebPluginDelegateProxy::UpdateGeometry(const gfx::Rect& window_rect,
 558                                             const gfx::Rect& clip_rect) {
 559   // window_rect becomes either a window in native windowing system
 560   // coords, or a backing buffer.  In either case things will go bad
 561   // if the rectangle is very large.
 562   if (window_rect.width() < 0  || window_rect.width() > kMaxPluginSideLength ||
 563       window_rect.height() < 0 || window_rect.height() > kMaxPluginSideLength ||
 564       // We know this won't overflow due to above checks.
 565       static_cast<uint32>(window_rect.width()) *
 566           static_cast<uint32>(window_rect.height()) > kMaxPluginSize) {
 567     return;
 568   }
 569
 570   plugin_rect_ = window_rect;
 571   clip_rect_ = clip_rect;
 572
 573   bool bitmaps_changed = false;
 574
 575   if (uses_shared_bitmaps_) {
 576     if (!front_buffer_canvas() ||
 577         (window_rect.width() != front_buffer_canvas()->getDevice()->width() ||
 578          window_rect.height() != front_buffer_canvas()->getDevice()->height()))
 579     {
 580       bitmaps_changed = true;
 581
 582       // Create a shared memory section that the plugin paints into
 583       // asynchronously.
 584       ResetWindowlessBitmaps();
 585       if (!window_rect.IsEmpty()) {
 586         if (!CreateSharedBitmap(&transport_stores_[0].bitmap,
 587                                 &transport_stores_[0].canvas) ||
 588             !CreateSharedBitmap(&transport_stores_[1].bitmap,
 589                                 &transport_stores_[1].canvas)) {
 590           DCHECK(false);
 591           ResetWindowlessBitmaps();
 592           return;
 593         }
 594       }
 595     }
 596   }
 597
 598   SendUpdateGeometry(bitmaps_changed);
 599 }
 600
 601 void WebPluginDelegateProxy::ResetWindowlessBitmaps() {
 602   transport_stores_[0].bitmap.reset();
 603   transport_stores_[1].bitmap.reset();
 604
 605   transport_stores_[0].canvas.reset();
 606   transport_stores_[1].canvas.reset();
 607   transport_store_painted_ = gfx::Rect();
 608   front_buffer_diff_ = gfx::Rect();
 609 }
 610
 611 #if !defined(OS_WIN)
 612 static size_t BitmapSizeForPluginRect(const gfx::Rect& plugin_rect) {
 613   const size_t stride =
 614       skia::PlatformCanvasStrideForWidth(plugin_rect.width());
 615   return stride * plugin_rect.height();
 616 }
 617
 618 bool WebPluginDelegateProxy::CreateLocalBitmap(
 619     std::vector<uint8>* memory,
 620     scoped_ptr<skia::PlatformCanvas>* canvas) {
 621   const size_t size = BitmapSizeForPluginRect(plugin_rect_);
 622   memory->resize(size);
 623   if (memory->size() != size)
 624     return false;
 625   canvas->reset(skia::CreatePlatformCanvas(
 626       plugin_rect_.width(), plugin_rect_.height(), true, &((*memory)[0]),
 627       skia::CRASH_ON_FAILURE));
 628   return true;
 629 }
 630 #endif
 631
 632 bool WebPluginDelegateProxy::CreateSharedBitmap(
 633     scoped_ptr<SharedMemoryBitmap>* memory,
 634     scoped_ptr<skia::PlatformCanvas>* canvas) {
 635   *memory = ChildThreadImpl::current()
 636                 ->shared_bitmap_manager()
 637                 ->AllocateSharedMemoryBitmap(plugin_rect_.size());
 638   if (!memory->get())
 639     return false;
 640   DCHECK((*memory)->shared_memory());
 641 #if defined(OS_POSIX)
 642   canvas->reset(skia::CreatePlatformCanvas(
 643       plugin_rect_.width(), plugin_rect_.height(), true, (*memory)->pixels(),
 644       skia::RETURN_NULL_ON_FAILURE));
 645 #else
 646   canvas->reset(skia::CreatePlatformCanvas(
 647       plugin_rect_.width(), plugin_rect_.height(), true,
 648       (*memory)->shared_memory()->handle(), skia::RETURN_NULL_ON_FAILURE));
 649 #endif
 650   return !!canvas->get();
 651 }
 652
 653 void WebPluginDelegateProxy::Paint(SkCanvas* canvas,
 654                                    const gfx::Rect& damaged_rect) {
 655   // Limit the damaged rectangle to whatever is contained inside the plugin
 656   // rectangle, as that's the rectangle that we'll actually draw.
 657   gfx::Rect rect = gfx::IntersectRects(damaged_rect, plugin_rect_);
 658
 659   // If the plugin is no longer connected (channel crashed) draw a crashed
 660   // plugin bitmap
 661   if (!channel_host_.get() || !channel_host_->channel_valid()) {
 662     // Lazily load the sad plugin image.
 663     if (!sad_plugin_)
 664       sad_plugin_ = GetContentClient()->renderer()->GetSadPluginBitmap();
 665     if (sad_plugin_)
 666       PaintSadPlugin(canvas, plugin_rect_, *sad_plugin_);
 667     return;
 668   }
 669
 670   if (!uses_shared_bitmaps_)
 671     return;
 672
 673   // We got a paint before the plugin's coordinates, so there's no buffer to
 674   // copy from.
 675   if (!front_buffer_canvas())
 676     return;
 677
 678   gfx::Rect offset_rect = rect;
 679   offset_rect.Offset(-plugin_rect_.x(), -plugin_rect_.y());
 680
 681   // transport_store_painted_ is really a bounding box, so in principle this
 682   // check could falsely indicate that we don't need to paint offset_rect, but
 683   // in practice it works fine.
 684   if (!transport_store_painted_.Contains(offset_rect)) {
 685     Send(new PluginMsg_Paint(instance_id_, offset_rect));
 686     // Since the plugin is not blocked on the renderer in this context, there is
 687     // a chance that it will begin repainting the back-buffer before we complete
 688     // capturing the data. Buffer flipping would increase that risk because
 689     // geometry update is asynchronous, so we don't want to use buffer flipping
 690     // here.
 691     UpdateFrontBuffer(offset_rect, false);
 692   }
 693
 694   const SkBitmap& bitmap =
 695       front_buffer_canvas()->getDevice()->accessBitmap(false);
 696   SkPaint paint;
 697   paint.setXfermodeMode(
 698       transparent_ ? SkXfermode::kSrcATop_Mode : SkXfermode::kSrc_Mode);
 699   SkRect src_rect = gfx::RectToSkRect(offset_rect);
 700   canvas->drawBitmapRect(bitmap,
 701                          src_rect,
 702                          gfx::RectToSkRect(rect),
 703                          &paint);
 704
 705   if (invalidate_pending_) {
 706     // Only send the PaintAck message if this paint is in response to an
 707     // invalidate from the plugin, since this message acts as an access token
 708     // to ensure only one process is using the shared bitmap at a time.
 709     invalidate_pending_ = false;
 710     Send(new PluginMsg_DidPaint(instance_id_));
 711   }
 712 }
 713
 714 NPObject* WebPluginDelegateProxy::GetPluginScriptableObject() {
 715   if (npobject_)
 716     return WebBindings::retainObject(npobject_);
 717
 718   if (!channel_host_.get())
 719     return NULL;
 720
 721   int route_id = MSG_ROUTING_NONE;
 722   Send(new PluginMsg_GetPluginScriptableObject(instance_id_, &route_id));
 723   if (route_id == MSG_ROUTING_NONE)
 724     return NULL;
 725
 726   if (!channel_host_.get())
 727     return nullptr;
 728
 729   npobject_ = NPObjectProxy::Create(
 730       channel_host_.get(), route_id, 0, page_url_, GetPluginNPP());
 731
 732   return WebBindings::retainObject(npobject_);
 733 }
 734
 735 NPP WebPluginDelegateProxy::GetPluginNPP() {
 736   // Return a dummy NPP for WebKit to use to identify this plugin.
 737   return npp_.get();
 738 }
 739
 740 bool WebPluginDelegateProxy::GetFormValue(base::string16* value) {
 741   bool success = false;
 742   Send(new PluginMsg_GetFormValue(instance_id_, value, &success));
 743   return success;
 744 }
 745
 746 void WebPluginDelegateProxy::DidFinishLoadWithReason(
 747     const GURL& url, NPReason reason, int notify_id) {
 748   Send(new PluginMsg_DidFinishLoadWithReason(
 749       instance_id_, url, reason, notify_id));
 750 }
 751
 752 void WebPluginDelegateProxy::SetFocus(bool focused) {
 753   Send(new PluginMsg_SetFocus(instance_id_, focused));
 754 #if defined(OS_WIN)
 755   if (render_view_)
 756     render_view_->PluginFocusChanged(focused, instance_id_);
 757 #endif
 758 }
 759
 760 bool WebPluginDelegateProxy::HandleInputEvent(
 761     const WebInputEvent& event,
 762     WebCursor::CursorInfo* cursor_info) {
 763   bool handled = false;
 764   WebCursor cursor;
 765   // A windowless plugin can enter a modal loop in the context of a
 766   // NPP_HandleEvent call, in which case we need to pump messages to
 767   // the plugin. We pass of the corresponding event handle to the
 768   // plugin process, which is set if the plugin does enter a modal loop.
 769   IPC::SyncMessage* message = new PluginMsg_HandleInputEvent(
 770       instance_id_, &event, &handled, &cursor);
 771   message->set_pump_messages_event(modal_loop_pump_messages_event_.get());
 772   Send(message);
 773   return handled;
 774 }
 775
 776 int WebPluginDelegateProxy::GetProcessId() {
 777   return channel_host_->peer_pid();
 778 }
 779
 780 void WebPluginDelegateProxy::SetContentAreaFocus(bool has_focus) {
 781   IPC::Message* msg = new PluginMsg_SetContentAreaFocus(instance_id_,
 782                                                         has_focus);
 783   // Make sure focus events are delivered in the right order relative to
 784   // sync messages they might interact with (Paint, HandleEvent, etc.).
 785   msg->set_unblock(true);
 786   Send(msg);
 787 }
 788
 789 #if defined(OS_WIN)
 790 void WebPluginDelegateProxy::ImeCompositionUpdated(
 791     const base::string16& text,
 792     const std::vector<int>& clauses,
 793     const std::vector<int>& target,
 794     int cursor_position,
 795     int plugin_id) {
 796   // Dispatch the raw IME data if this plugin is the focused one.
 797   if (instance_id_ != plugin_id)
 798     return;
 799
 800   IPC::Message* msg = new PluginMsg_ImeCompositionUpdated(instance_id_,
 801       text, clauses, target, cursor_position);
 802   msg->set_unblock(true);
 803   Send(msg);
 804 }
 805
 806 void WebPluginDelegateProxy::ImeCompositionCompleted(const base::string16& text,
 807                                                      int plugin_id) {
 808   // Dispatch the IME text if this plugin is the focused one.
 809   if (instance_id_ != plugin_id)
 810     return;
 811
 812   IPC::Message* msg = new PluginMsg_ImeCompositionCompleted(instance_id_, text);
 813   msg->set_unblock(true);
 814   Send(msg);
 815 }
 816 #endif
 817
 818 #if defined(OS_MACOSX)
 819 void WebPluginDelegateProxy::SetWindowFocus(bool window_has_focus) {
 820   IPC::Message* msg = new PluginMsg_SetWindowFocus(instance_id_,
 821                                                    window_has_focus);
 822   // Make sure focus events are delivered in the right order relative to
 823   // sync messages they might interact with (Paint, HandleEvent, etc.).
 824   msg->set_unblock(true);
 825   Send(msg);
 826 }
 827
 828 void WebPluginDelegateProxy::SetContainerVisibility(bool is_visible) {
 829   IPC::Message* msg;
 830   if (is_visible) {
 831     gfx::Rect window_frame = render_view_->rootWindowRect();
 832     gfx::Rect view_frame = render_view_->windowRect();
 833     blink::WebView* webview = render_view_->webview();
 834     msg = new PluginMsg_ContainerShown(instance_id_, window_frame, view_frame,
 835                                        webview && webview->isActive());
 836   } else {
 837     msg = new PluginMsg_ContainerHidden(instance_id_);
 838   }
 839   // Make sure visibility events are delivered in the right order relative to
 840   // sync messages they might interact with (Paint, HandleEvent, etc.).
 841   msg->set_unblock(true);
 842   Send(msg);
 843 }
 844
 845 void WebPluginDelegateProxy::WindowFrameChanged(gfx::Rect window_frame,
 846                                                 gfx::Rect view_frame) {
 847   IPC::Message* msg = new PluginMsg_WindowFrameChanged(instance_id_,
 848                                                        window_frame,
 849                                                        view_frame);
 850   // Make sure frame events are delivered in the right order relative to
 851   // sync messages they might interact with (e.g., HandleEvent).
 852   msg->set_unblock(true);
 853   Send(msg);
 854 }
 855 void WebPluginDelegateProxy::ImeCompositionCompleted(const base::string16& text,
 856                                                      int plugin_id) {
 857   // If the message isn't intended for this plugin, there's nothing to do.
 858   if (instance_id_ != plugin_id)
 859     return;
 860
 861   IPC::Message* msg = new PluginMsg_ImeCompositionCompleted(instance_id_,
 862                                                             text);
 863   // Order relative to other key events is important.
 864   msg->set_unblock(true);
 865   Send(msg);
 866 }
 867 #endif  // OS_MACOSX
 868
 869 void WebPluginDelegateProxy::OnSetWindow(gfx::PluginWindowHandle window) {
 870 #if defined(OS_MACOSX)
 871   uses_shared_bitmaps_ = !window && !uses_compositor_;
 872 #else
 873   uses_shared_bitmaps_ = !window;
 874 #endif
 875   window_ = window;
 876   if (plugin_)
 877     plugin_->SetWindow(window);
 878 }
 879
 880 void WebPluginDelegateProxy::WillDestroyWindow() {
 881   DCHECK(window_);
 882   plugin_->WillDestroyWindow(window_);
 883   window_ = gfx::kNullPluginWindow;
 884 }
 885
 886 #if defined(OS_WIN)
 887 void WebPluginDelegateProxy::OnSetWindowlessData(
 888       HANDLE modal_loop_pump_messages_event_handle,
 889       gfx::NativeViewId dummy_activation_window) {
 890   DCHECK(!modal_loop_pump_messages_event_.get());
 891   DCHECK(!dummy_activation_window_);
 892   base::win::ScopedHandle modal_loop_pump_messages_event(
 893       modal_loop_pump_messages_event_handle);
 894
 895   dummy_activation_window_ = dummy_activation_window;
 896   render_view_->Send(new ViewHostMsg_WindowlessPluginDummyWindowCreated(
 897       render_view_->routing_id(), dummy_activation_window_));
 898
 899   // Bug 25583: this can be null because some "virus scanners" block the
 900   // DuplicateHandle call in the plugin process.
 901   if (!modal_loop_pump_messages_event.IsValid())
 902     return;
 903
 904   modal_loop_pump_messages_event_.reset(
 905       new base::WaitableEvent(modal_loop_pump_messages_event.Pass()));
 906 }
 907
 908 void WebPluginDelegateProxy::OnNotifyIMEStatus(int input_type,
 909                                                const gfx::Rect& caret_rect) {
 910   if (!render_view_)
 911     return;
 912
 913   ViewHostMsg_TextInputState_Params params;
 914   params.type = static_cast<ui::TextInputType>(input_type);
 915   params.mode = ui::TEXT_INPUT_MODE_DEFAULT;
 916   params.can_compose_inline = true;
 917   render_view_->Send(new ViewHostMsg_TextInputStateChanged(
 918       render_view_->routing_id(), params));
 919
 920   ViewHostMsg_SelectionBounds_Params bounds_params;
 921   bounds_params.anchor_rect = bounds_params.focus_rect = caret_rect;
 922   bounds_params.anchor_dir = bounds_params.focus_dir =
 923       blink::WebTextDirectionLeftToRight;
 924   bounds_params.is_anchor_first = true;
 925   render_view_->Send(new ViewHostMsg_SelectionBoundsChanged(
 926       render_view_->routing_id(),
 927       bounds_params));
 928 }
 929 #endif
 930
 931 void WebPluginDelegateProxy::OnCancelResource(int id) {
 932   if (plugin_)
 933     plugin_->CancelResource(id);
 934 }
 935
 936 void WebPluginDelegateProxy::OnInvalidateRect(const gfx::Rect& rect) {
 937   if (!plugin_)
 938     return;
 939
 940   // Clip the invalidation rect to the plugin bounds; the plugin may have been
 941   // resized since the invalidate message was sent.
 942   gfx::Rect clipped_rect =
 943       gfx::IntersectRects(rect, gfx::Rect(plugin_rect_.size()));
 944
 945   invalidate_pending_ = true;
 946   // The plugin is blocked on the renderer because the invalidate message it has
 947   // sent us is synchronous, so we can use buffer flipping here if the caller
 948   // allows it.
 949   UpdateFrontBuffer(clipped_rect, true);
 950   plugin_->InvalidateRect(clipped_rect);
 951 }
 952
 953 void WebPluginDelegateProxy::OnGetWindowScriptNPObject(
 954     int route_id, bool* success) {
 955   *success = false;
 956   NPObject* npobject = NULL;
 957   if (plugin_)
 958     npobject = plugin_->GetWindowScriptNPObject();
 959
 960   if (!npobject)
 961     return;
 962
 963   // The stub will delete itself when the proxy tells it that it's released, or
 964   // otherwise when the channel is closed.
 965   new NPObjectStub(npobject, channel_host_.get(), route_id, 0, page_url_);
 966   *success = true;
 967 }
 968
 969 void WebPluginDelegateProxy::OnResolveProxy(const GURL& url,
 970                                             bool* result,
 971                                             std::string* proxy_list) {
 972   *result = RenderThreadImpl::current()->ResolveProxy(url, proxy_list);
 973 }
 974
 975 void WebPluginDelegateProxy::OnGetPluginElement(int route_id, bool* success) {
 976   *success = false;
 977   NPObject* npobject = NULL;
 978   if (plugin_)
 979     npobject = plugin_->GetPluginElement();
 980   if (!npobject)
 981     return;
 982
 983   // The stub will delete itself when the proxy tells it that it's released, or
 984   // otherwise when the channel is closed.
 985   new NPObjectStub(
 986       npobject, channel_host_.get(), route_id, 0, page_url_);
 987   *success = true;
 988 }
 989
 990 void WebPluginDelegateProxy::OnSetCookie(const GURL& url,
 991                                          const GURL& first_party_for_cookies,
 992                                          const std::string& cookie) {
 993   if (plugin_)
 994     plugin_->SetCookie(url, first_party_for_cookies, cookie);
 995 }
 996
 997 void WebPluginDelegateProxy::OnGetCookies(const GURL& url,
 998                                           const GURL& first_party_for_cookies,
 999                                           std::string* cookies) {
1000   DCHECK(cookies);
1001   if (plugin_)
1002     *cookies = plugin_->GetCookies(url, first_party_for_cookies);
1003 }
1004
1005 void WebPluginDelegateProxy::CopyFromBackBufferToFrontBuffer(
1006     const gfx::Rect& rect) {
1007 #if defined(OS_MACOSX)
1008   // Blitting the bits directly is much faster than going through CG, and since
1009   // the goal is just to move the raw pixels between two bitmaps with the same
1010   // pixel format (no compositing, color correction, etc.), it's safe.
1011   const size_t stride =
1012       skia::PlatformCanvasStrideForWidth(plugin_rect_.width());
1013   const size_t chunk_size = 4 * rect.width();
1014   DCHECK(back_buffer_bitmap() != NULL);
1015   uint8* source_data =
1016       back_buffer_bitmap()->pixels() + rect.y() * stride + 4 * rect.x();
1017   DCHECK(front_buffer_bitmap() != NULL);
1018   uint8* target_data =
1019       front_buffer_bitmap()->pixels() + rect.y() * stride + 4 * rect.x();
1020   for (int row = 0; row < rect.height(); ++row) {
1021     memcpy(target_data, source_data, chunk_size);
1022     source_data += stride;
1023     target_data += stride;
1024   }
1025 #else
1026   BlitCanvasToCanvas(front_buffer_canvas(),
1027                      rect,
1028                      back_buffer_canvas(),
1029                      rect.origin());
1030 #endif
1031 }
1032
1033 void WebPluginDelegateProxy::UpdateFrontBuffer(
1034     const gfx::Rect& rect,
1035     bool allow_buffer_flipping) {
1036   if (!front_buffer_canvas()) {
1037     return;
1038   }
1039
1040 #if defined(OS_WIN)
1041   // If SendUpdateGeometry() would block on the plugin process then we don't
1042   // want to use buffer flipping at all since it would add extra locking.
1043   // (Alternatively we could probably safely use async updates for buffer
1044   // flipping all the time since the size is not changing.)
1045   if (UseSynchronousGeometryUpdates()) {
1046     allow_buffer_flipping = false;
1047   }
1048 #endif
1049
1050   // Plugin has just painted "rect" into the back-buffer, so the front-buffer
1051   // no longer holds the latest content for that rectangle.
1052   front_buffer_diff_.Subtract(rect);
1053   if (allow_buffer_flipping && front_buffer_diff_.IsEmpty()) {
1054     // Back-buffer contains the latest content for all areas; simply flip
1055     // the buffers.
1056     front_buffer_index_ = back_buffer_index();
1057     SendUpdateGeometry(false);
1058     // The front-buffer now holds newer content for this region than the
1059     // back-buffer.
1060     front_buffer_diff_ = rect;
1061   } else {
1062     // Back-buffer contains the latest content for "rect" but the front-buffer
1063     // contains the latest content for some other areas (or buffer flipping not
1064     // allowed); fall back to copying the data.
1065     CopyFromBackBufferToFrontBuffer(rect);
1066   }
1067   transport_store_painted_.Union(rect);
1068 }
1069
1070 void WebPluginDelegateProxy::OnHandleURLRequest(
1071     const PluginHostMsg_URLRequest_Params& params) {
1072   const char* data = NULL;
1073   if (params.buffer.size())
1074     data = &params.buffer[0];
1075
1076   const char* target = NULL;
1077   if (params.target.length())
1078     target = params.target.c_str();
1079
1080   plugin_->HandleURLRequest(
1081       params.url.c_str(), params.method.c_str(), target, data,
1082       static_cast<unsigned int>(params.buffer.size()), params.notify_id,
1083       params.popups_allowed, params.notify_redirects);
1084 }
1085
1086 WebPluginResourceClient* WebPluginDelegateProxy::CreateResourceClient(
1087     unsigned long resource_id, const GURL& url, int notify_id) {
1088   if (!channel_host_.get())
1089     return NULL;
1090
1091   ResourceClientProxy* proxy =
1092       new ResourceClientProxy(channel_host_.get(), instance_id_);
1093   proxy->Initialize(resource_id, url, notify_id);
1094   return proxy;
1095 }
1096
1097 WebPluginResourceClient* WebPluginDelegateProxy::CreateSeekableResourceClient(
1098     unsigned long resource_id, int range_request_id) {
1099   if (!channel_host_.get())
1100     return NULL;
1101
1102   ResourceClientProxy* proxy =
1103       new ResourceClientProxy(channel_host_.get(), instance_id_);
1104   proxy->InitializeForSeekableStream(resource_id, range_request_id);
1105   return proxy;
1106 }
1107
1108 void WebPluginDelegateProxy::FetchURL(unsigned long resource_id,
1109                                       int notify_id,
1110                                       const GURL& url,
1111                                       const GURL& first_party_for_cookies,
1112                                       const std::string& method,
1113                                       const char* buf,
1114                                       unsigned int len,
1115                                       const Referrer& referrer,
1116                                       bool notify_redirects,
1117                                       bool is_plugin_src_load,
1118                                       int origin_pid,
1119                                       int render_frame_id,
1120                                       int render_view_id) {
1121   PluginMsg_FetchURL_Params params;
1122   params.resource_id = resource_id;
1123   params.notify_id = notify_id;
1124   params.url = url;
1125   params.first_party_for_cookies = first_party_for_cookies;
1126   params.method = method;
1127   if (len) {
1128     params.post_data.resize(len);
1129     memcpy(&params.post_data.front(), buf, len);
1130   }
1131   params.referrer = referrer.url;
1132   params.referrer_policy = referrer.policy;
1133   params.notify_redirect = notify_redirects;
1134   params.is_plugin_src_load = is_plugin_src_load;
1135   params.render_frame_id = render_frame_id;
1136   Send(new PluginMsg_FetchURL(instance_id_, params));
1137 }
1138
1139 #if defined(OS_MACOSX)
1140 void WebPluginDelegateProxy::OnFocusChanged(bool focused) {
1141   if (render_view_)
1142     render_view_->PluginFocusChanged(focused, instance_id_);
1143 }
1144
1145 void WebPluginDelegateProxy::OnStartIme() {
1146   if (render_view_)
1147     render_view_->StartPluginIme();
1148 }
1149 #endif
1150
1151 gfx::PluginWindowHandle WebPluginDelegateProxy::GetPluginWindowHandle() {
1152   return window_;
1153 }
1154
1155 void WebPluginDelegateProxy::OnCancelDocumentLoad() {
1156   plugin_->CancelDocumentLoad();
1157 }
1158
1159 void WebPluginDelegateProxy::OnInitiateHTTPRangeRequest(
1160     const std::string& url,
1161     const std::string& range_info,
1162     int range_request_id) {
1163   plugin_->InitiateHTTPRangeRequest(
1164       url.c_str(), range_info.c_str(), range_request_id);
1165 }
1166
1167 void WebPluginDelegateProxy::OnDidStartLoading() {
1168   plugin_->DidStartLoading();
1169 }
1170
1171 void WebPluginDelegateProxy::OnDidStopLoading() {
1172   plugin_->DidStopLoading();
1173 }
1174
1175 void WebPluginDelegateProxy::OnDeferResourceLoading(unsigned long resource_id,
1176                                                     bool defer) {
1177   plugin_->SetDeferResourceLoading(resource_id, defer);
1178 }
1179
1180 #if defined(OS_MACOSX)
1181 void WebPluginDelegateProxy::OnAcceleratedPluginEnabledRendering() {
1182   uses_compositor_ = true;
1183   OnSetWindow(gfx::kNullPluginWindow);
1184 }
1185
1186 void WebPluginDelegateProxy::OnAcceleratedPluginAllocatedIOSurface(
1187     int32 width,
1188     int32 height,
1189     uint32 surface_id) {
1190   if (plugin_)
1191     plugin_->AcceleratedPluginAllocatedIOSurface(width, height, surface_id);
1192 }
1193
1194 void WebPluginDelegateProxy::OnAcceleratedPluginSwappedIOSurface() {
1195   if (plugin_)
1196     plugin_->AcceleratedPluginSwappedIOSurface();
1197 }
1198 #endif
1199
1200 #if defined(OS_WIN)
1201 bool WebPluginDelegateProxy::UseSynchronousGeometryUpdates() {
1202   // Need to update geometry synchronously with WMP, otherwise if a site
1203   // scripts the plugin to start playing while it's in the middle of handling
1204   // an update geometry message, videos don't play.  See urls in bug 20260.
1205   if (info_.name.find(base::ASCIIToUTF16("Windows Media Player")) !=
1206       base::string16::npos)
1207     return true;
1208
1209   // The move networks plugin needs to be informed of geometry updates
1210   // synchronously.
1211   std::vector<WebPluginMimeType>::iterator index;
1212   for (index = info_.mime_types.begin(); index != info_.mime_types.end();
1213        index++) {
1214     if (index->mime_type == "application/x-vnd.moveplayer.qm" ||
1215         index->mime_type == "application/x-vnd.moveplay2.qm" ||
1216         index->mime_type == "application/x-vnd.movenetworks.qm" ||
1217         index->mime_type == "application/x-vnd.mnplayer.qm") {
1218       return true;
1219     }
1220   }
1221   return false;
1222 }
1223 #endif
1224
1225 void WebPluginDelegateProxy::OnURLRedirectResponse(bool allow,
1226                                                    int resource_id) {
1227   if (!plugin_)
1228     return;
1229
1230   plugin_->URLRedirectResponse(allow, resource_id);
1231 }
1232
1233 void WebPluginDelegateProxy::OnCheckIfRunInsecureContent(const GURL& url,
1234                                                          bool* result) {
1235   *result = plugin_->CheckIfRunInsecureContent(url);
1236 }
1237
1238 }  // namespace content