content/plugin/webplugin_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/plugin/webplugin_proxy.h"
   6
   7 #include "build/build_config.h"
   8
   9 #include "base/bind.h"
  10 #include "base/lazy_instance.h"
  11 #include "base/memory/shared_memory.h"
  12 #include "build/build_config.h"
  13 #include "content/child/npapi/npobject_proxy.h"
  14 #include "content/child/npapi/npobject_util.h"
  15 #include "content/child/npapi/webplugin_delegate_impl.h"
  16 #include "content/child/npapi/webplugin_resource_client.h"
  17 #include "content/child/plugin_messages.h"
  18 #include "content/plugin/plugin_channel.h"
  19 #include "content/plugin/plugin_thread.h"
  20 #include "content/public/common/content_client.h"
  21 #include "skia/ext/platform_canvas.h"
  22 #include "skia/ext/platform_device.h"
  23 #include "third_party/WebKit/public/web/WebBindings.h"
  24 #include "ui/gfx/blit.h"
  25 #include "ui/gfx/canvas.h"
  26 #include "url/url_constants.h"
  27
  28 #if defined(OS_MACOSX)
  29 #include "base/mac/mac_util.h"
  30 #include "base/mac/scoped_cftyperef.h"
  31 #include "content/plugin/webplugin_accelerated_surface_proxy_mac.h"
  32 #endif
  33
  34 #if defined(OS_WIN)
  35 #include "content/common/plugin_process_messages.h"
  36 #include "content/public/common/sandbox_init.h"
  37 #endif
  38
  39 using blink::WebBindings;
  40
  41 namespace content {
  42
  43 WebPluginProxy::SharedTransportDIB::SharedTransportDIB(TransportDIB* dib)
  44     : dib_(dib) {
  45 }
  46
  47 WebPluginProxy::SharedTransportDIB::~SharedTransportDIB() {
  48 }
  49
  50 WebPluginProxy::WebPluginProxy(
  51     PluginChannel* channel,
  52     int route_id,
  53     const GURL& page_url,
  54     int host_render_view_routing_id)
  55     : channel_(channel),
  56       route_id_(route_id),
  57       window_npobject_(NULL),
  58       plugin_element_(NULL),
  59       delegate_(NULL),
  60       waiting_for_paint_(false),
  61       page_url_(page_url),
  62       windowless_buffer_index_(0),
  63       host_render_view_routing_id_(host_render_view_routing_id),
  64       weak_factory_(this) {
  65 }
  66
  67 WebPluginProxy::~WebPluginProxy() {
  68 #if defined(OS_MACOSX)
  69   // Destroy the surface early, since it may send messages during cleanup.
  70   if (accelerated_surface_)
  71     accelerated_surface_.reset();
  72 #endif
  73
  74   if (plugin_element_)
  75     WebBindings::releaseObject(plugin_element_);
  76   if (window_npobject_)
  77     WebBindings::releaseObject(window_npobject_);
  78 }
  79
  80 bool WebPluginProxy::Send(IPC::Message* msg) {
  81   return channel_->Send(msg);
  82 }
  83
  84 void WebPluginProxy::SetWindow(gfx::PluginWindowHandle window) {
  85   Send(new PluginHostMsg_SetWindow(route_id_, window));
  86 }
  87
  88 void WebPluginProxy::SetAcceptsInputEvents(bool accepts) {
  89   NOTREACHED();
  90 }
  91
  92 void WebPluginProxy::WillDestroyWindow(gfx::PluginWindowHandle window) {
  93 #if defined(OS_WIN)
  94   PluginThread::current()->Send(
  95       new PluginProcessHostMsg_PluginWindowDestroyed(
  96           window, ::GetParent(window)));
  97 #else
  98   NOTIMPLEMENTED();
  99 #endif
 100 }
 101
 102 #if defined(OS_WIN)
 103 void WebPluginProxy::SetWindowlessData(
 104     HANDLE pump_messages_event, gfx::NativeViewId dummy_activation_window) {
 105   HANDLE pump_messages_event_for_renderer = NULL;
 106   BrokerDuplicateHandle(pump_messages_event, channel_->peer_pid(),
 107                                  &pump_messages_event_for_renderer,
 108                                  SYNCHRONIZE | EVENT_MODIFY_STATE, 0);
 109   DCHECK(pump_messages_event_for_renderer);
 110   Send(new PluginHostMsg_SetWindowlessData(
 111       route_id_, pump_messages_event_for_renderer, dummy_activation_window));
 112 }
 113 #endif
 114
 115 void WebPluginProxy::CancelResource(unsigned long id) {
 116   Send(new PluginHostMsg_CancelResource(route_id_, id));
 117   resource_clients_.erase(id);
 118 }
 119
 120 void WebPluginProxy::Invalidate() {
 121   gfx::Rect rect(0, 0,
 122                  delegate_->GetRect().width(),
 123                  delegate_->GetRect().height());
 124   InvalidateRect(rect);
 125 }
 126
 127 void WebPluginProxy::InvalidateRect(const gfx::Rect& rect) {
 128 #if defined(OS_MACOSX)
 129   // If this is a Core Animation plugin, all we need to do is inform the
 130   // delegate.
 131   if (!windowless_context()) {
 132     delegate_->PluginDidInvalidate();
 133     return;
 134   }
 135
 136   // Some plugins will send invalidates larger than their own rect when
 137   // offscreen, so constrain invalidates to the plugin rect.
 138   gfx::Rect plugin_rect = delegate_->GetRect();
 139   plugin_rect.set_origin(gfx::Point(0, 0));
 140   plugin_rect.Intersect(rect);
 141   const gfx::Rect invalidate_rect(plugin_rect);
 142 #else
 143   const gfx::Rect invalidate_rect(rect);
 144 #endif
 145   damaged_rect_.Union(invalidate_rect);
 146   // Ignore NPN_InvalidateRect calls with empty rects.  Also don't send an
 147   // invalidate if it's outside the clipping region, since if we did it won't
 148   // lead to a paint and we'll be stuck waiting forever for a DidPaint response.
 149   //
 150   // TODO(piman): There is a race condition here, because this test assumes
 151   // that when the paint actually occurs, the clip rect will not have changed.
 152   // This is not true because scrolling (or window resize) could occur and be
 153   // handled by the renderer before it receives the InvalidateRect message,
 154   // changing the clip rect and then not painting.
 155   if (damaged_rect_.IsEmpty() ||
 156       !delegate_->GetClipRect().Intersects(damaged_rect_))
 157     return;
 158
 159   // Only send a single InvalidateRect message at a time.  From DidPaint we
 160   // will dispatch an additional InvalidateRect message if necessary.
 161   if (!waiting_for_paint_) {
 162     waiting_for_paint_ = true;
 163     // Invalidates caused by calls to NPN_InvalidateRect/NPN_InvalidateRgn
 164     // need to be painted asynchronously as per the NPAPI spec.
 165     base::MessageLoop::current()->PostTask(
 166         FROM_HERE,
 167         base::Bind(&WebPluginProxy::OnPaint,
 168                    weak_factory_.GetWeakPtr(),
 169                    damaged_rect_));
 170     damaged_rect_ = gfx::Rect();
 171   }
 172 }
 173
 174 NPObject* WebPluginProxy::GetWindowScriptNPObject() {
 175   if (window_npobject_)
 176     return window_npobject_;
 177
 178   int npobject_route_id = channel_->GenerateRouteID();
 179   bool success = false;
 180   Send(new PluginHostMsg_GetWindowScriptNPObject(
 181       route_id_, npobject_route_id, &success));
 182   if (!success)
 183     return NULL;
 184
 185   // PluginChannel creates a dummy owner identifier for unknown owners, so
 186   // use that.
 187   NPP owner = channel_->GetExistingNPObjectOwner(MSG_ROUTING_NONE);
 188
 189   window_npobject_ = NPObjectProxy::Create(channel_.get(),
 190                                            npobject_route_id,
 191                                            host_render_view_routing_id_,
 192                                            page_url_,
 193                                            owner);
 194
 195   return window_npobject_;
 196 }
 197
 198 NPObject* WebPluginProxy::GetPluginElement() {
 199   if (plugin_element_)
 200     return plugin_element_;
 201
 202   int npobject_route_id = channel_->GenerateRouteID();
 203   bool success = false;
 204   Send(new PluginHostMsg_GetPluginElement(route_id_, npobject_route_id,
 205                                           &success));
 206   if (!success)
 207     return NULL;
 208
 209   // PluginChannel creates a dummy owner identifier for unknown owners, so
 210   // use that.
 211   NPP owner = channel_->GetExistingNPObjectOwner(MSG_ROUTING_NONE);
 212
 213   plugin_element_ = NPObjectProxy::Create(channel_.get(),
 214                                           npobject_route_id,
 215                                           host_render_view_routing_id_,
 216                                           page_url_,
 217                                           owner);
 218
 219   return plugin_element_;
 220 }
 221
 222 bool WebPluginProxy::FindProxyForUrl(const GURL& url, std::string* proxy_list) {
 223   bool result = false;
 224   Send(new PluginHostMsg_ResolveProxy(route_id_, url, &result, proxy_list));
 225   return result;
 226 }
 227
 228 void WebPluginProxy::SetCookie(const GURL& url,
 229                                const GURL& first_party_for_cookies,
 230                                const std::string& cookie) {
 231   Send(new PluginHostMsg_SetCookie(route_id_, url,
 232                                    first_party_for_cookies, cookie));
 233 }
 234
 235 std::string WebPluginProxy::GetCookies(const GURL& url,
 236                                        const GURL& first_party_for_cookies) {
 237   std::string cookies;
 238   Send(new PluginHostMsg_GetCookies(route_id_, url,
 239                                     first_party_for_cookies, &cookies));
 240
 241   return cookies;
 242 }
 243
 244 WebPluginResourceClient* WebPluginProxy::GetResourceClient(int id) {
 245   ResourceClientMap::iterator iterator = resource_clients_.find(id);
 246   // The IPC messages which deal with streams are now asynchronous. It is
 247   // now possible to receive stream messages from the renderer for streams
 248   // which may have been cancelled by the plugin.
 249   if (iterator == resource_clients_.end()) {
 250     return NULL;
 251   }
 252
 253   return iterator->second;
 254 }
 255
 256 int WebPluginProxy::GetRendererId() {
 257   if (channel_.get())
 258     return channel_->renderer_id();
 259   return -1;
 260 }
 261
 262 void WebPluginProxy::DidPaint() {
 263   // If we have an accumulated damaged rect, then check to see if we need to
 264   // send out another InvalidateRect message.
 265   waiting_for_paint_ = false;
 266   if (!damaged_rect_.IsEmpty())
 267     InvalidateRect(damaged_rect_);
 268 }
 269
 270 void WebPluginProxy::OnResourceCreated(int resource_id,
 271                                        WebPluginResourceClient* client) {
 272   DCHECK(resource_clients_.find(resource_id) == resource_clients_.end());
 273   resource_clients_[resource_id] = client;
 274 }
 275
 276 void WebPluginProxy::HandleURLRequest(const char* url,
 277                                       const char* method,
 278                                       const char* target,
 279                                       const char* buf,
 280                                       unsigned int len,
 281                                       int notify_id,
 282                                       bool popups_allowed,
 283                                       bool notify_redirects) {
 284  if (!target && (0 == base::strcasecmp(method, "GET"))) {
 285     // Please refer to https://bugzilla.mozilla.org/show_bug.cgi?id=366082
 286     // for more details on this.
 287     if (delegate_->GetQuirks() &
 288         WebPluginDelegateImpl::PLUGIN_QUIRK_BLOCK_NONSTANDARD_GETURL_REQUESTS) {
 289       GURL request_url(url);
 290       if (!request_url.SchemeIs(url::kHttpScheme) &&
 291           !request_url.SchemeIs(url::kHttpsScheme) &&
 292           !request_url.SchemeIs(url::kFtpScheme)) {
 293         return;
 294       }
 295     }
 296   }
 297
 298   PluginHostMsg_URLRequest_Params params;
 299   params.url = url;
 300   params.method = method;
 301   if (target)
 302     params.target = std::string(target);
 303
 304   if (len) {
 305     params.buffer.resize(len);
 306     memcpy(&params.buffer.front(), buf, len);
 307   }
 308
 309   params.notify_id = notify_id;
 310   params.popups_allowed = popups_allowed;
 311   params.notify_redirects = notify_redirects;
 312
 313   Send(new PluginHostMsg_URLRequest(route_id_, params));
 314 }
 315
 316 void WebPluginProxy::Paint(const gfx::Rect& rect) {
 317 #if defined(OS_MACOSX)
 318   if (!windowless_context())
 319     return;
 320 #else
 321   if (!windowless_canvas() || !windowless_canvas()->getDevice())
 322     return;
 323 #endif
 324
 325   // Clear the damaged area so that if the plugin doesn't paint there we won't
 326   // end up with the old values.
 327   gfx::Rect offset_rect = rect;
 328   offset_rect.Offset(delegate_->GetRect().OffsetFromOrigin());
 329 #if defined(OS_MACOSX)
 330   CGContextSaveGState(windowless_context());
 331   // It is possible for windowless_contexts_ to change during plugin painting
 332   // (since the plugin can make a synchronous call during paint event handling),
 333   // in which case we don't want to try to restore later. Not an owning ref
 334   // since owning the ref without owning the shared backing memory doesn't make
 335   // sense, so this should only be used for pointer comparisons.
 336   CGContextRef saved_context_weak = windowless_context();
 337   // We also save the buffer index for the comparison because if we flip buffers
 338   // but haven't reallocated them then we do need to restore the context because
 339   // it is going to continue to be used.
 340   int saved_index = windowless_buffer_index_;
 341
 342   CGContextClipToRect(windowless_context(), rect.ToCGRect());
 343   // TODO(caryclark): This is a temporary workaround to allow the Darwin / Skia
 344   // port to share code with the Darwin / CG port. All ports will eventually use
 345   // the common code below.
 346   delegate_->CGPaint(windowless_context(), rect);
 347   if (windowless_contexts_[saved_index].get() == saved_context_weak)
 348     CGContextRestoreGState(windowless_contexts_[saved_index]);
 349 #else
 350   // See above comment about windowless_context_ changing.
 351   // http::/crbug.com/139462
 352   skia::RefPtr<skia::PlatformCanvas> saved_canvas = windowless_canvas();
 353
 354   saved_canvas->save();
 355
 356   // The given clip rect is relative to the plugin coordinate system.
 357   SkRect sk_rect = { SkIntToScalar(rect.x()),
 358                      SkIntToScalar(rect.y()),
 359                      SkIntToScalar(rect.right()),
 360                      SkIntToScalar(rect.bottom()) };
 361   saved_canvas->clipRect(sk_rect);
 362
 363   // Fill a transparent value so that if the plugin supports transparency that
 364   // will work.
 365   saved_canvas->drawColor(SkColorSetARGB(0, 0, 0, 0), SkXfermode::kSrc_Mode);
 366
 367   // Bring the windowless canvas into the window coordinate system, which is
 368   // how the plugin expects to draw (since the windowless API was originally
 369   // designed just for scribbling over the web page).
 370   saved_canvas->translate(SkIntToScalar(-delegate_->GetRect().x()),
 371                           SkIntToScalar(-delegate_->GetRect().y()));
 372
 373   // Before we send the invalidate, paint so that renderer uses the updated
 374   // bitmap.
 375   delegate_->Paint(saved_canvas.get(), offset_rect);
 376
 377   saved_canvas->restore();
 378 #endif
 379 }
 380
 381 void WebPluginProxy::UpdateGeometry(
 382     const gfx::Rect& window_rect,
 383     const gfx::Rect& clip_rect,
 384     const TransportDIB::Handle& windowless_buffer0,
 385     const TransportDIB::Handle& windowless_buffer1,
 386     int windowless_buffer_index) {
 387   gfx::Rect old = delegate_->GetRect();
 388   gfx::Rect old_clip_rect = delegate_->GetClipRect();
 389
 390   // Update the buffers before doing anything that could call into plugin code,
 391   // so that we don't process buffer changes out of order if plugins make
 392   // synchronous calls that lead to nested UpdateGeometry calls.
 393   if (TransportDIB::is_valid_handle(windowless_buffer0)) {
 394     // The plugin's rect changed, so now we have new buffers to draw into.
 395     SetWindowlessBuffers(windowless_buffer0,
 396                          windowless_buffer1,
 397                          window_rect);
 398   }
 399
 400   DCHECK(0 <= windowless_buffer_index && windowless_buffer_index <= 1);
 401   windowless_buffer_index_ = windowless_buffer_index;
 402
 403 #if defined(OS_MACOSX)
 404   delegate_->UpdateGeometryAndContext(
 405       window_rect, clip_rect, windowless_context());
 406 #else
 407   delegate_->UpdateGeometry(window_rect, clip_rect);
 408 #endif
 409
 410   // Send over any pending invalidates which occured when the plugin was
 411   // off screen.
 412   if (delegate_->IsWindowless() && !clip_rect.IsEmpty() &&
 413       !damaged_rect_.IsEmpty()) {
 414     InvalidateRect(damaged_rect_);
 415   }
 416 }
 417
 418 #if defined(OS_WIN)
 419
 420 void WebPluginProxy::CreateCanvasFromHandle(
 421     const TransportDIB::Handle& dib_handle,
 422     const gfx::Rect& window_rect,
 423     skia::RefPtr<skia::PlatformCanvas>* canvas) {
 424   *canvas = skia::AdoptRef(
 425       skia::CreatePlatformCanvas(window_rect.width(),
 426                                  window_rect.height(),
 427                                  true,
 428                                  dib_handle,
 429                                  skia::RETURN_NULL_ON_FAILURE));
 430   // The canvas does not own the section so we need to close it now.
 431   CloseHandle(dib_handle);
 432 }
 433
 434 void WebPluginProxy::SetWindowlessBuffers(
 435     const TransportDIB::Handle& windowless_buffer0,
 436     const TransportDIB::Handle& windowless_buffer1,
 437     const gfx::Rect& window_rect) {
 438   CreateCanvasFromHandle(windowless_buffer0,
 439                          window_rect,
 440                          &windowless_canvases_[0]);
 441   if (!windowless_canvases_[0]) {
 442     windowless_canvases_[1].clear();
 443     return;
 444   }
 445   CreateCanvasFromHandle(windowless_buffer1,
 446                          window_rect,
 447                          &windowless_canvases_[1]);
 448   if (!windowless_canvases_[1]) {
 449     windowless_canvases_[0].clear();
 450     return;
 451   }
 452 }
 453
 454 #elif defined(OS_MACOSX)
 455
 456 void WebPluginProxy::CreateDIBAndCGContextFromHandle(
 457     const TransportDIB::Handle& dib_handle,
 458     const gfx::Rect& window_rect,
 459     scoped_ptr<TransportDIB>* dib_out,
 460     base::ScopedCFTypeRef<CGContextRef>* cg_context_out) {
 461   // Convert the shared memory handle to a handle that works in our process,
 462   // and then use that to create a CGContextRef.
 463   TransportDIB* dib = TransportDIB::Map(dib_handle);
 464   CGContextRef cg_context = NULL;
 465   if (dib) {
 466     cg_context = CGBitmapContextCreate(
 467         dib->memory(),
 468         window_rect.width(),
 469         window_rect.height(),
 470         8,
 471         4 * window_rect.width(),
 472         base::mac::GetSystemColorSpace(),
 473         kCGImageAlphaPremultipliedFirst | kCGBitmapByteOrder32Host);
 474     CGContextTranslateCTM(cg_context, 0, window_rect.height());
 475     CGContextScaleCTM(cg_context, 1, -1);
 476   }
 477   dib_out->reset(dib);
 478   cg_context_out->reset(cg_context);
 479 }
 480
 481 void WebPluginProxy::SetWindowlessBuffers(
 482     const TransportDIB::Handle& windowless_buffer0,
 483     const TransportDIB::Handle& windowless_buffer1,
 484     const gfx::Rect& window_rect) {
 485   CreateDIBAndCGContextFromHandle(windowless_buffer0,
 486                                   window_rect,
 487                                   &windowless_dibs_[0],
 488                                   &windowless_contexts_[0]);
 489   CreateDIBAndCGContextFromHandle(windowless_buffer1,
 490                                   window_rect,
 491                                   &windowless_dibs_[1],
 492                                   &windowless_contexts_[1]);
 493 }
 494
 495 #else
 496
 497 void WebPluginProxy::SetWindowlessBuffers(
 498     const TransportDIB::Handle& windowless_buffer0,
 499     const TransportDIB::Handle& windowless_buffer1,
 500     const gfx::Rect& window_rect) {
 501   NOTIMPLEMENTED();
 502 }
 503
 504 #endif
 505
 506 void WebPluginProxy::CancelDocumentLoad() {
 507   Send(new PluginHostMsg_CancelDocumentLoad(route_id_));
 508 }
 509
 510 void WebPluginProxy::InitiateHTTPRangeRequest(
 511     const char* url, const char* range_info, int range_request_id) {
 512   Send(new PluginHostMsg_InitiateHTTPRangeRequest(
 513       route_id_, url, range_info, range_request_id));
 514 }
 515
 516 void WebPluginProxy::DidStartLoading() {
 517   Send(new PluginHostMsg_DidStartLoading(route_id_));
 518 }
 519
 520 void WebPluginProxy::DidStopLoading() {
 521   Send(new PluginHostMsg_DidStopLoading(route_id_));
 522 }
 523
 524 void WebPluginProxy::SetDeferResourceLoading(unsigned long resource_id,
 525                                              bool defer) {
 526   Send(new PluginHostMsg_DeferResourceLoading(route_id_, resource_id, defer));
 527 }
 528
 529 #if defined(OS_MACOSX)
 530 void WebPluginProxy::FocusChanged(bool focused) {
 531   IPC::Message* msg = new PluginHostMsg_FocusChanged(route_id_, focused);
 532   Send(msg);
 533 }
 534
 535 void WebPluginProxy::StartIme() {
 536   IPC::Message* msg = new PluginHostMsg_StartIme(route_id_);
 537   // This message can be sent during event-handling, and needs to be delivered
 538   // within that context.
 539   msg->set_unblock(true);
 540   Send(msg);
 541 }
 542
 543 WebPluginAcceleratedSurface* WebPluginProxy::GetAcceleratedSurface(
 544     gfx::GpuPreference gpu_preference) {
 545   if (!accelerated_surface_)
 546     accelerated_surface_.reset(
 547         WebPluginAcceleratedSurfaceProxy::Create(this, gpu_preference));
 548   return accelerated_surface_.get();
 549 }
 550
 551 void WebPluginProxy::AcceleratedPluginEnabledRendering() {
 552   Send(new PluginHostMsg_AcceleratedPluginEnabledRendering(route_id_));
 553 }
 554
 555 void WebPluginProxy::AcceleratedPluginAllocatedIOSurface(int32 width,
 556                                                          int32 height,
 557                                                          uint32 surface_id) {
 558   Send(new PluginHostMsg_AcceleratedPluginAllocatedIOSurface(
 559       route_id_, width, height, surface_id));
 560 }
 561
 562 void WebPluginProxy::AcceleratedPluginSwappedIOSurface() {
 563   Send(new PluginHostMsg_AcceleratedPluginSwappedIOSurface(
 564       route_id_));
 565 }
 566 #endif
 567
 568 void WebPluginProxy::OnPaint(const gfx::Rect& damaged_rect) {
 569   GetContentClient()->SetActiveURL(page_url_);
 570
 571   Paint(damaged_rect);
 572   Send(new PluginHostMsg_InvalidateRect(route_id_, damaged_rect));
 573 }
 574
 575 bool WebPluginProxy::IsOffTheRecord() {
 576   return channel_->incognito();
 577 }
 578
 579 void WebPluginProxy::ResourceClientDeleted(
 580     WebPluginResourceClient* resource_client) {
 581   // resource_client->ResourceId() is 0 at this point, so can't use it as an
 582   // index into the map.
 583   ResourceClientMap::iterator index = resource_clients_.begin();
 584   while (index != resource_clients_.end()) {
 585     WebPluginResourceClient* client = (*index).second;
 586     if (client == resource_client) {
 587       resource_clients_.erase(index);
 588       return;
 589     } else {
 590       index++;
 591     }
 592   }
 593 }
 594
 595 void WebPluginProxy::URLRedirectResponse(bool allow, int resource_id) {
 596   Send(new PluginHostMsg_URLRedirectResponse(route_id_, allow, resource_id));
 597 }
 598
 599 bool WebPluginProxy::CheckIfRunInsecureContent(const GURL& url) {
 600   bool result = true;
 601   Send(new PluginHostMsg_CheckIfRunInsecureContent(
 602       route_id_, url, &result));
 603   return result;
 604 }
 605
 606 #if defined(OS_WIN) && !defined(USE_AURA)
 607 void WebPluginProxy::UpdateIMEStatus() {
 608   // Retrieve the IME status from a plug-in and send it to a renderer process
 609   // when the plug-in has updated it.
 610   int input_type;
 611   gfx::Rect caret_rect;
 612   if (!delegate_->GetIMEStatus(&input_type, &caret_rect))
 613     return;
 614
 615   Send(new PluginHostMsg_NotifyIMEStatus(route_id_, input_type, caret_rect));
 616 }
 617 #endif
 618
 619 }  // namespace content