android_webview/native/aw_contents.cc

   1 // Copyright 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 "android_webview/native/aw_contents.h"
   6
   7 #include <limits>
   8
   9 #include "android_webview/browser/aw_browser_context.h"
  10 #include "android_webview/browser/aw_browser_main_parts.h"
  11 #include "android_webview/browser/aw_resource_context.h"
  12 #include "android_webview/browser/browser_view_renderer.h"
  13 #include "android_webview/browser/deferred_gpu_command_service.h"
  14 #include "android_webview/browser/net_disk_cache_remover.h"
  15 #include "android_webview/browser/renderer_host/aw_resource_dispatcher_host_delegate.h"
  16 #include "android_webview/browser/scoped_app_gl_state_restore.h"
  17 #include "android_webview/browser/shared_renderer_state.h"
  18 #include "android_webview/common/aw_hit_test_data.h"
  19 #include "android_webview/common/devtools_instrumentation.h"
  20 #include "android_webview/native/aw_autofill_client.h"
  21 #include "android_webview/native/aw_browser_dependency_factory.h"
  22 #include "android_webview/native/aw_contents_client_bridge.h"
  23 #include "android_webview/native/aw_contents_io_thread_client_impl.h"
  24 #include "android_webview/native/aw_message_port_service_impl.h"
  25 #include "android_webview/native/aw_pdf_exporter.h"
  26 #include "android_webview/native/aw_picture.h"
  27 #include "android_webview/native/aw_web_contents_delegate.h"
  28 #include "android_webview/native/java_browser_view_renderer_helper.h"
  29 #include "android_webview/native/permission/aw_permission_request.h"
  30 #include "android_webview/native/permission/permission_request_handler.h"
  31 #include "android_webview/native/permission/simple_permission_request.h"
  32 #include "android_webview/native/state_serializer.h"
  33 #include "android_webview/public/browser/draw_gl.h"
  34 #include "base/android/jni_android.h"
  35 #include "base/android/jni_array.h"
  36 #include "base/android/jni_string.h"
  37 #include "base/android/locale_utils.h"
  38 #include "base/android/scoped_java_ref.h"
  39 #include "base/atomicops.h"
  40 #include "base/bind.h"
  41 #include "base/callback.h"
  42 #include "base/memory/memory_pressure_listener.h"
  43 #include "base/message_loop/message_loop.h"
  44 #include "base/pickle.h"
  45 #include "base/strings/string16.h"
  46 #include "base/supports_user_data.h"
  47 #include "components/autofill/content/browser/content_autofill_driver_factory.h"
  48 #include "components/autofill/core/browser/autofill_manager.h"
  49 #include "components/autofill/core/browser/webdata/autofill_webdata_service.h"
  50 #include "components/data_reduction_proxy/core/browser/data_reduction_proxy_settings.h"
  51 #include "components/navigation_interception/intercept_navigation_delegate.h"
  52 #include "content/public/browser/android/content_view_core.h"
  53 #include "content/public/browser/android/synchronous_compositor.h"
  54 #include "content/public/browser/browser_thread.h"
  55 #include "content/public/browser/cert_store.h"
  56 #include "content/public/browser/favicon_status.h"
  57 #include "content/public/browser/message_port_provider.h"
  58 #include "content/public/browser/navigation_entry.h"
  59 #include "content/public/browser/render_frame_host.h"
  60 #include "content/public/browser/render_process_host.h"
  61 #include "content/public/browser/render_view_host.h"
  62 #include "content/public/browser/web_contents.h"
  63 #include "content/public/common/message_port_types.h"
  64 #include "content/public/common/renderer_preferences.h"
  65 #include "content/public/common/ssl_status.h"
  66 #include "jni/AwContents_jni.h"
  67 #include "net/base/auth.h"
  68 #include "net/cert/x509_certificate.h"
  69 #include "third_party/skia/include/core/SkPicture.h"
  70 #include "ui/gfx/android/java_bitmap.h"
  71 #include "ui/gfx/geometry/rect_f.h"
  72 #include "ui/gfx/geometry/size.h"
  73 #include "ui/gfx/image/image.h"
  74
  75 struct AwDrawSWFunctionTable;
  76
  77 using autofill::ContentAutofillDriverFactory;
  78 using autofill::AutofillManager;
  79 using base::android::AttachCurrentThread;
  80 using base::android::ConvertJavaStringToUTF16;
  81 using base::android::ConvertJavaStringToUTF8;
  82 using base::android::ConvertUTF16ToJavaString;
  83 using base::android::ConvertUTF8ToJavaString;
  84 using base::android::JavaRef;
  85 using base::android::ScopedJavaGlobalRef;
  86 using base::android::ScopedJavaLocalRef;
  87 using data_reduction_proxy::DataReductionProxySettings;
  88 using navigation_interception::InterceptNavigationDelegate;
  89 using content::BrowserThread;
  90 using content::ContentViewCore;
  91 using content::WebContents;
  92
  93 extern "C" {
  94 static AwDrawGLFunction DrawGLFunction;
  95 static void DrawGLFunction(long view_context,
  96                            AwDrawGLInfo* draw_info,
  97                            void* spare) {
  98   // |view_context| is the value that was returned from the java
  99   // AwContents.onPrepareDrawGL; this cast must match the code there.
 100   reinterpret_cast<android_webview::SharedRendererState*>(view_context)
 101       ->DrawGL(draw_info);
 102 }
 103 }
 104
 105 namespace android_webview {
 106
 107 namespace {
 108
 109 bool g_should_download_favicons = false;
 110
 111 const void* kAwContentsUserDataKey = &kAwContentsUserDataKey;
 112
 113 class AwContentsUserData : public base::SupportsUserData::Data {
 114  public:
 115   AwContentsUserData(AwContents* ptr) : contents_(ptr) {}
 116
 117   static AwContents* GetContents(WebContents* web_contents) {
 118     if (!web_contents)
 119       return NULL;
 120     AwContentsUserData* data = static_cast<AwContentsUserData*>(
 121         web_contents->GetUserData(kAwContentsUserDataKey));
 122     return data ? data->contents_ : NULL;
 123   }
 124
 125  private:
 126   AwContents* contents_;
 127 };
 128
 129 base::subtle::Atomic32 g_instance_count = 0;
 130
 131 void OnIoThreadClientReady(content::RenderFrameHost* rfh) {
 132   int render_process_id = rfh->GetProcess()->GetID();
 133   int render_frame_id = rfh->GetRoutingID();
 134   AwResourceDispatcherHostDelegate::OnIoThreadClientReady(
 135       render_process_id, render_frame_id);
 136 }
 137
 138 }  // namespace
 139
 140 // static
 141 AwContents* AwContents::FromWebContents(WebContents* web_contents) {
 142   DCHECK_CURRENTLY_ON(BrowserThread::UI);
 143   return AwContentsUserData::GetContents(web_contents);
 144 }
 145
 146 // static
 147 AwContents* AwContents::FromID(int render_process_id, int render_view_id) {
 148   const content::RenderViewHost* rvh =
 149       content::RenderViewHost::FromID(render_process_id, render_view_id);
 150   if (!rvh) return NULL;
 151   content::WebContents* web_contents =
 152       content::WebContents::FromRenderViewHost(rvh);
 153   if (!web_contents) return NULL;
 154   return FromWebContents(web_contents);
 155 }
 156
 157 // static
 158 AwBrowserPermissionRequestDelegate* AwBrowserPermissionRequestDelegate::FromID(
 159     int render_process_id, int render_view_id) {
 160   AwContents* aw_contents = AwContents::FromID(render_process_id,
 161                                                render_view_id);
 162   return implicit_cast<AwBrowserPermissionRequestDelegate*>(aw_contents);
 163 }
 164
 165 AwContents::AwContents(scoped_ptr<WebContents> web_contents)
 166     : web_contents_(web_contents.Pass()),
 167       browser_view_renderer_(
 168           this,
 169           BrowserThread::GetMessageLoopProxyForThread(BrowserThread::UI)),
 170       renderer_manager_key_(GLViewRendererManager::GetInstance()->NullKey()) {
 171   base::subtle::NoBarrier_AtomicIncrement(&g_instance_count, 1);
 172   icon_helper_.reset(new IconHelper(web_contents_.get()));
 173   icon_helper_->SetListener(this);
 174   web_contents_->SetUserData(android_webview::kAwContentsUserDataKey,
 175                              new AwContentsUserData(this));
 176   browser_view_renderer_.RegisterWithWebContents(web_contents_.get());
 177   render_view_host_ext_.reset(
 178       new AwRenderViewHostExt(this, web_contents_.get()));
 179
 180   permission_request_handler_.reset(
 181       new PermissionRequestHandler(this, web_contents_.get()));
 182
 183   AwAutofillClient* autofill_manager_delegate =
 184       AwAutofillClient::FromWebContents(web_contents_.get());
 185   InitDataReductionProxyIfNecessary();
 186   if (autofill_manager_delegate)
 187     InitAutofillIfNecessary(autofill_manager_delegate->GetSaveFormData());
 188   content::SynchronousCompositor::SetClientForWebContents(
 189       web_contents_.get(), &browser_view_renderer_);
 190 }
 191
 192 void AwContents::SetJavaPeers(JNIEnv* env,
 193                               jobject obj,
 194                               jobject aw_contents,
 195                               jobject web_contents_delegate,
 196                               jobject contents_client_bridge,
 197                               jobject io_thread_client,
 198                               jobject intercept_navigation_delegate) {
 199   DCHECK_CURRENTLY_ON(BrowserThread::UI);
 200   // The |aw_content| param is technically spurious as it duplicates |obj| but
 201   // is passed over anyway to make the binding more explicit.
 202   java_ref_ = JavaObjectWeakGlobalRef(env, aw_contents);
 203
 204   web_contents_delegate_.reset(
 205       new AwWebContentsDelegate(env, web_contents_delegate));
 206   web_contents_->SetDelegate(web_contents_delegate_.get());
 207
 208   contents_client_bridge_.reset(
 209       new AwContentsClientBridge(env, contents_client_bridge));
 210   AwContentsClientBridgeBase::Associate(web_contents_.get(),
 211                                         contents_client_bridge_.get());
 212
 213   AwContentsIoThreadClientImpl::Associate(
 214       web_contents_.get(), ScopedJavaLocalRef<jobject>(env, io_thread_client));
 215
 216   InterceptNavigationDelegate::Associate(
 217       web_contents_.get(),
 218       make_scoped_ptr(new InterceptNavigationDelegate(
 219           env, intercept_navigation_delegate)));
 220
 221   // Finally, having setup the associations, release any deferred requests
 222   web_contents_->ForEachFrame(base::Bind(&OnIoThreadClientReady));
 223 }
 224
 225 void AwContents::SetSaveFormData(bool enabled) {
 226   DCHECK_CURRENTLY_ON(BrowserThread::UI);
 227   InitAutofillIfNecessary(enabled);
 228   // We need to check for the existence, since autofill_manager_delegate
 229   // may not be created when the setting is false.
 230   if (AwAutofillClient::FromWebContents(web_contents_.get())) {
 231     AwAutofillClient::FromWebContents(web_contents_.get())->
 232         SetSaveFormData(enabled);
 233   }
 234 }
 235
 236 void AwContents::InitDataReductionProxyIfNecessary() {
 237   AwBrowserContext* browser_context =
 238       AwBrowserContext::FromWebContents(web_contents_.get());
 239   browser_context->CreateUserPrefServiceIfNecessary();
 240 }
 241
 242 void AwContents::InitAutofillIfNecessary(bool enabled) {
 243   // Do not initialize if the feature is not enabled.
 244   if (!enabled)
 245     return;
 246   // Check if the autofill driver factory already exists.
 247   content::WebContents* web_contents = web_contents_.get();
 248   if (ContentAutofillDriverFactory::FromWebContents(web_contents))
 249     return;
 250
 251   AwBrowserContext::FromWebContents(web_contents)->
 252       CreateUserPrefServiceIfNecessary();
 253   AwAutofillClient::CreateForWebContents(web_contents);
 254   ContentAutofillDriverFactory::CreateForWebContentsAndDelegate(
 255       web_contents, AwAutofillClient::FromWebContents(web_contents),
 256       base::android::GetDefaultLocale(),
 257       AutofillManager::DISABLE_AUTOFILL_DOWNLOAD_MANAGER);
 258 }
 259
 260 void AwContents::SetAwAutofillClient(jobject client) {
 261   DCHECK_CURRENTLY_ON(BrowserThread::UI);
 262   JNIEnv* env = AttachCurrentThread();
 263   ScopedJavaLocalRef<jobject> obj = java_ref_.get(env);
 264   if (obj.is_null())
 265     return;
 266   Java_AwContents_setAwAutofillClient(env, obj.obj(), client);
 267 }
 268
 269 AwContents::~AwContents() {
 270   DCHECK_EQ(this, AwContents::FromWebContents(web_contents_.get()));
 271   content::SynchronousCompositor::SetClientForWebContents(web_contents_.get(),
 272                                                           NULL);
 273   web_contents_->RemoveUserData(kAwContentsUserDataKey);
 274   if (find_helper_.get())
 275     find_helper_->SetListener(NULL);
 276   if (icon_helper_.get())
 277     icon_helper_->SetListener(NULL);
 278   base::subtle::NoBarrier_AtomicIncrement(&g_instance_count, -1);
 279   // When the last WebView is destroyed free all discardable memory allocated by
 280   // Chromium, because the app process may continue to run for a long time
 281   // without ever using another WebView.
 282   if (base::subtle::NoBarrier_Load(&g_instance_count) == 0) {
 283     base::MemoryPressureListener::NotifyMemoryPressure(
 284         base::MemoryPressureListener::MEMORY_PRESSURE_LEVEL_CRITICAL);
 285   }
 286 }
 287
 288 base::android::ScopedJavaLocalRef<jobject>
 289 AwContents::GetWebContents(JNIEnv* env, jobject obj) {
 290   DCHECK_CURRENTLY_ON(BrowserThread::UI);
 291   DCHECK(web_contents_);
 292   if (!web_contents_)
 293     return base::android::ScopedJavaLocalRef<jobject>();
 294
 295   return web_contents_->GetJavaWebContents();
 296 }
 297
 298 void AwContents::Destroy(JNIEnv* env, jobject obj) {
 299   java_ref_.reset();
 300   delete this;
 301 }
 302
 303 static jlong Init(JNIEnv* env, jclass, jobject browser_context) {
 304   // TODO(joth): Use |browser_context| to get the native BrowserContext, rather
 305   // than hard-code the default instance lookup here.
 306   scoped_ptr<WebContents> web_contents(content::WebContents::Create(
 307       content::WebContents::CreateParams(AwBrowserContext::GetDefault())));
 308   // Return an 'uninitialized' instance; most work is deferred until the
 309   // subsequent SetJavaPeers() call.
 310   return reinterpret_cast<intptr_t>(new AwContents(web_contents.Pass()));
 311 }
 312
 313 static void SetAwDrawSWFunctionTable(JNIEnv* env, jclass,
 314                                      jlong function_table) {
 315   RasterHelperSetAwDrawSWFunctionTable(
 316       reinterpret_cast<AwDrawSWFunctionTable*>(function_table));
 317 }
 318
 319 static void SetAwDrawGLFunctionTable(JNIEnv* env, jclass,
 320                                      jlong function_table) {
 321 }
 322
 323 static jlong GetAwDrawGLFunction(JNIEnv* env, jclass) {
 324   return reinterpret_cast<intptr_t>(&DrawGLFunction);
 325 }
 326
 327 // static
 328 jint GetNativeInstanceCount(JNIEnv* env, jclass) {
 329   return base::subtle::NoBarrier_Load(&g_instance_count);
 330 }
 331
 332 jlong AwContents::GetAwDrawGLViewContext(JNIEnv* env, jobject obj) {
 333   DCHECK_CURRENTLY_ON(BrowserThread::UI);
 334   return reinterpret_cast<intptr_t>(
 335       browser_view_renderer_.GetAwDrawGLViewContext());
 336 }
 337
 338 namespace {
 339 void DocumentHasImagesCallback(const ScopedJavaGlobalRef<jobject>& message,
 340                                bool has_images) {
 341   Java_AwContents_onDocumentHasImagesResponse(AttachCurrentThread(),
 342                                               has_images,
 343                                               message.obj());
 344 }
 345 }  // namespace
 346
 347 void AwContents::DocumentHasImages(JNIEnv* env, jobject obj, jobject message) {
 348   DCHECK_CURRENTLY_ON(BrowserThread::UI);
 349   ScopedJavaGlobalRef<jobject> j_message;
 350   j_message.Reset(env, message);
 351   render_view_host_ext_->DocumentHasImages(
 352       base::Bind(&DocumentHasImagesCallback, j_message));
 353 }
 354
 355 namespace {
 356 void GenerateMHTMLCallback(ScopedJavaGlobalRef<jobject>* callback,
 357                            const base::FilePath& path, int64 size) {
 358   JNIEnv* env = AttachCurrentThread();
 359   // Android files are UTF8, so the path conversion below is safe.
 360   Java_AwContents_generateMHTMLCallback(
 361       env,
 362       ConvertUTF8ToJavaString(env, path.AsUTF8Unsafe()).obj(),
 363       size, callback->obj());
 364 }
 365 }  // namespace
 366
 367 void AwContents::GenerateMHTML(JNIEnv* env, jobject obj,
 368                                jstring jpath, jobject callback) {
 369   DCHECK_CURRENTLY_ON(BrowserThread::UI);
 370   ScopedJavaGlobalRef<jobject>* j_callback = new ScopedJavaGlobalRef<jobject>();
 371   j_callback->Reset(env, callback);
 372   base::FilePath target_path(ConvertJavaStringToUTF8(env, jpath));
 373   web_contents_->GenerateMHTML(
 374       target_path,
 375       base::Bind(&GenerateMHTMLCallback, base::Owned(j_callback), target_path));
 376 }
 377
 378 void AwContents::CreatePdfExporter(JNIEnv* env,
 379                                    jobject obj,
 380                                    jobject pdfExporter) {
 381   pdf_exporter_.reset(
 382       new AwPdfExporter(env,
 383                         pdfExporter,
 384                         web_contents_.get()));
 385 }
 386
 387 bool AwContents::OnReceivedHttpAuthRequest(const JavaRef<jobject>& handler,
 388                                            const std::string& host,
 389                                            const std::string& realm) {
 390   DCHECK_CURRENTLY_ON(BrowserThread::UI);
 391   JNIEnv* env = AttachCurrentThread();
 392   ScopedJavaLocalRef<jobject> obj = java_ref_.get(env);
 393   if (obj.is_null())
 394     return false;
 395
 396   ScopedJavaLocalRef<jstring> jhost = ConvertUTF8ToJavaString(env, host);
 397   ScopedJavaLocalRef<jstring> jrealm = ConvertUTF8ToJavaString(env, realm);
 398   devtools_instrumentation::ScopedEmbedderCallbackTask embedder_callback(
 399       "onReceivedHttpAuthRequest");
 400   Java_AwContents_onReceivedHttpAuthRequest(env, obj.obj(), handler.obj(),
 401       jhost.obj(), jrealm.obj());
 402   return true;
 403 }
 404
 405 void AwContents::SetOffscreenPreRaster(bool enabled) {
 406   DCHECK_CURRENTLY_ON(BrowserThread::UI);
 407   browser_view_renderer_.SetOffscreenPreRaster(enabled);
 408 }
 409
 410 void AwContents::AddVisitedLinks(JNIEnv* env,
 411                                    jobject obj,
 412                                    jobjectArray jvisited_links) {
 413   DCHECK_CURRENTLY_ON(BrowserThread::UI);
 414   std::vector<base::string16> visited_link_strings;
 415   base::android::AppendJavaStringArrayToStringVector(
 416       env, jvisited_links, &visited_link_strings);
 417
 418   std::vector<GURL> visited_link_gurls;
 419   std::vector<base::string16>::const_iterator itr;
 420   for (itr = visited_link_strings.begin(); itr != visited_link_strings.end();
 421        ++itr) {
 422     visited_link_gurls.push_back(GURL(*itr));
 423   }
 424
 425   AwBrowserContext::FromWebContents(web_contents_.get())
 426       ->AddVisitedURLs(visited_link_gurls);
 427 }
 428
 429 bool RegisterAwContents(JNIEnv* env) {
 430   return RegisterNativesImpl(env);
 431 }
 432
 433 namespace {
 434
 435 void ShowGeolocationPromptHelperTask(const JavaObjectWeakGlobalRef& java_ref,
 436                                      const GURL& origin) {
 437   JNIEnv* env = AttachCurrentThread();
 438   ScopedJavaLocalRef<jobject> j_ref = java_ref.get(env);
 439   if (j_ref.obj()) {
 440     ScopedJavaLocalRef<jstring> j_origin(
 441         ConvertUTF8ToJavaString(env, origin.spec()));
 442     devtools_instrumentation::ScopedEmbedderCallbackTask embedder_callback(
 443         "onGeolocationPermissionsShowPrompt");
 444     Java_AwContents_onGeolocationPermissionsShowPrompt(env,
 445                                                        j_ref.obj(),
 446                                                        j_origin.obj());
 447   }
 448 }
 449
 450 void ShowGeolocationPromptHelper(const JavaObjectWeakGlobalRef& java_ref,
 451                                  const GURL& origin) {
 452   JNIEnv* env = AttachCurrentThread();
 453   if (java_ref.get(env).obj()) {
 454     content::BrowserThread::PostTask(
 455         content::BrowserThread::UI,
 456         FROM_HERE,
 457         base::Bind(&ShowGeolocationPromptHelperTask,
 458                    java_ref,
 459                    origin));
 460   }
 461 }
 462
 463 } // anonymous namespace
 464
 465 void AwContents::ShowGeolocationPrompt(const GURL& requesting_frame,
 466                                        base::Callback<void(bool)> callback) {
 467   DCHECK_CURRENTLY_ON(BrowserThread::UI);
 468
 469   GURL origin = requesting_frame.GetOrigin();
 470   bool show_prompt = pending_geolocation_prompts_.empty();
 471   pending_geolocation_prompts_.push_back(OriginCallback(origin, callback));
 472   if (show_prompt) {
 473     ShowGeolocationPromptHelper(java_ref_, origin);
 474   }
 475 }
 476
 477 // Invoked from Java
 478 void AwContents::InvokeGeolocationCallback(JNIEnv* env,
 479                                            jobject obj,
 480                                            jboolean value,
 481                                            jstring origin) {
 482   DCHECK_CURRENTLY_ON(BrowserThread::UI);
 483
 484   GURL callback_origin(base::android::ConvertJavaStringToUTF16(env, origin));
 485   if (callback_origin.GetOrigin() ==
 486       pending_geolocation_prompts_.front().first) {
 487     pending_geolocation_prompts_.front().second.Run(value);
 488     pending_geolocation_prompts_.pop_front();
 489     if (!pending_geolocation_prompts_.empty()) {
 490       ShowGeolocationPromptHelper(java_ref_,
 491                                   pending_geolocation_prompts_.front().first);
 492     }
 493   }
 494 }
 495
 496 void AwContents::HideGeolocationPrompt(const GURL& origin) {
 497   DCHECK_CURRENTLY_ON(BrowserThread::UI);
 498   bool removed_current_outstanding_callback = false;
 499   std::list<OriginCallback>::iterator it = pending_geolocation_prompts_.begin();
 500   while (it != pending_geolocation_prompts_.end()) {
 501     if ((*it).first == origin.GetOrigin()) {
 502       if (it == pending_geolocation_prompts_.begin()) {
 503         removed_current_outstanding_callback = true;
 504       }
 505       it = pending_geolocation_prompts_.erase(it);
 506     } else {
 507       ++it;
 508     }
 509   }
 510
 511   if (removed_current_outstanding_callback) {
 512     JNIEnv* env = AttachCurrentThread();
 513     ScopedJavaLocalRef<jobject> j_ref = java_ref_.get(env);
 514     if (j_ref.obj()) {
 515       devtools_instrumentation::ScopedEmbedderCallbackTask embedder_callback(
 516           "onGeolocationPermissionsHidePrompt");
 517       Java_AwContents_onGeolocationPermissionsHidePrompt(env, j_ref.obj());
 518     }
 519     if (!pending_geolocation_prompts_.empty()) {
 520       ShowGeolocationPromptHelper(java_ref_,
 521                             pending_geolocation_prompts_.front().first);
 522     }
 523   }
 524 }
 525
 526 void AwContents::OnPermissionRequest(AwPermissionRequest* request) {
 527   JNIEnv* env = AttachCurrentThread();
 528   ScopedJavaLocalRef<jobject> j_request = request->CreateJavaPeer();
 529   ScopedJavaLocalRef<jobject> j_ref = java_ref_.get(env);
 530   if (j_request.is_null() || j_ref.is_null()) {
 531     permission_request_handler_->CancelRequest(
 532         request->GetOrigin(), request->GetResources());
 533     return;
 534   }
 535
 536   Java_AwContents_onPermissionRequest(env, j_ref.obj(), j_request.obj());
 537 }
 538
 539 void AwContents::OnPermissionRequestCanceled(AwPermissionRequest* request) {
 540   JNIEnv* env = AttachCurrentThread();
 541   ScopedJavaLocalRef<jobject> j_request = request->GetJavaObject();
 542   ScopedJavaLocalRef<jobject> j_ref = java_ref_.get(env);
 543   if (j_request.is_null() || j_ref.is_null())
 544     return;
 545
 546   Java_AwContents_onPermissionRequestCanceled(
 547       env, j_ref.obj(), j_request.obj());
 548 }
 549
 550 void AwContents::PreauthorizePermission(
 551     JNIEnv* env,
 552     jobject obj,
 553     jstring origin,
 554     jlong resources) {
 555   permission_request_handler_->PreauthorizePermission(
 556       GURL(base::android::ConvertJavaStringToUTF8(env, origin)), resources);
 557 }
 558
 559 void AwContents::RequestProtectedMediaIdentifierPermission(
 560     const GURL& origin,
 561     const base::Callback<void(bool)>& callback) {
 562   permission_request_handler_->SendRequest(
 563       scoped_ptr<AwPermissionRequestDelegate>(new SimplePermissionRequest(
 564           origin, AwPermissionRequest::ProtectedMediaId, callback)));
 565 }
 566
 567 void AwContents::CancelProtectedMediaIdentifierPermissionRequests(
 568     const GURL& origin) {
 569   permission_request_handler_->CancelRequest(
 570       origin, AwPermissionRequest::ProtectedMediaId);
 571 }
 572
 573 void AwContents::RequestGeolocationPermission(
 574     const GURL& origin,
 575     const base::Callback<void(bool)>& callback) {
 576   JNIEnv* env = AttachCurrentThread();
 577   ScopedJavaLocalRef<jobject> obj = java_ref_.get(env);
 578   if (obj.is_null())
 579     return;
 580
 581   if (Java_AwContents_useLegacyGeolocationPermissionAPI(env, obj.obj())) {
 582     ShowGeolocationPrompt(origin, callback);
 583     return;
 584   }
 585   permission_request_handler_->SendRequest(
 586       scoped_ptr<AwPermissionRequestDelegate>(new SimplePermissionRequest(
 587           origin, AwPermissionRequest::Geolocation, callback)));
 588 }
 589
 590 void AwContents::CancelGeolocationPermissionRequests(const GURL& origin) {
 591   JNIEnv* env = AttachCurrentThread();
 592   ScopedJavaLocalRef<jobject> obj = java_ref_.get(env);
 593   if (obj.is_null())
 594     return;
 595
 596   if (Java_AwContents_useLegacyGeolocationPermissionAPI(env, obj.obj())) {
 597     HideGeolocationPrompt(origin);
 598     return;
 599   }
 600   permission_request_handler_->CancelRequest(
 601       origin, AwPermissionRequest::Geolocation);
 602 }
 603
 604 void AwContents::FindAllAsync(JNIEnv* env, jobject obj, jstring search_string) {
 605   DCHECK_CURRENTLY_ON(BrowserThread::UI);
 606   GetFindHelper()->FindAllAsync(ConvertJavaStringToUTF16(env, search_string));
 607 }
 608
 609 void AwContents::FindNext(JNIEnv* env, jobject obj, jboolean forward) {
 610   DCHECK_CURRENTLY_ON(BrowserThread::UI);
 611   GetFindHelper()->FindNext(forward);
 612 }
 613
 614 void AwContents::ClearMatches(JNIEnv* env, jobject obj) {
 615   DCHECK_CURRENTLY_ON(BrowserThread::UI);
 616   GetFindHelper()->ClearMatches();
 617 }
 618
 619 void AwContents::ClearCache(
 620     JNIEnv* env,
 621     jobject obj,
 622     jboolean include_disk_files) {
 623   DCHECK_CURRENTLY_ON(BrowserThread::UI);
 624   render_view_host_ext_->ClearCache();
 625
 626   if (include_disk_files) {
 627     RemoveHttpDiskCache(web_contents_->GetBrowserContext(),
 628                         web_contents_->GetRoutingID());
 629   }
 630 }
 631
 632 FindHelper* AwContents::GetFindHelper() {
 633   DCHECK_CURRENTLY_ON(BrowserThread::UI);
 634   if (!find_helper_.get()) {
 635     find_helper_.reset(new FindHelper(web_contents_.get()));
 636     find_helper_->SetListener(this);
 637   }
 638   return find_helper_.get();
 639 }
 640
 641 void AwContents::OnFindResultReceived(int active_ordinal,
 642                                       int match_count,
 643                                       bool finished) {
 644   DCHECK_CURRENTLY_ON(BrowserThread::UI);
 645   JNIEnv* env = AttachCurrentThread();
 646   ScopedJavaLocalRef<jobject> obj = java_ref_.get(env);
 647   if (obj.is_null())
 648     return;
 649
 650   Java_AwContents_onFindResultReceived(
 651       env, obj.obj(), active_ordinal, match_count, finished);
 652 }
 653
 654 bool AwContents::ShouldDownloadFavicon(const GURL& icon_url) {
 655   return g_should_download_favicons;
 656 }
 657
 658 void AwContents::OnReceivedIcon(const GURL& icon_url, const SkBitmap& bitmap) {
 659   DCHECK_CURRENTLY_ON(BrowserThread::UI);
 660   JNIEnv* env = AttachCurrentThread();
 661   ScopedJavaLocalRef<jobject> obj = java_ref_.get(env);
 662   if (obj.is_null())
 663     return;
 664
 665   content::NavigationEntry* entry =
 666       web_contents_->GetController().GetActiveEntry();
 667
 668   if (entry) {
 669     entry->GetFavicon().valid = true;
 670     entry->GetFavicon().url = icon_url;
 671     entry->GetFavicon().image = gfx::Image::CreateFrom1xBitmap(bitmap);
 672   }
 673
 674   Java_AwContents_onReceivedIcon(
 675       env, obj.obj(), gfx::ConvertToJavaBitmap(&bitmap).obj());
 676 }
 677
 678 void AwContents::OnReceivedTouchIconUrl(const std::string& url,
 679                                         bool precomposed) {
 680   DCHECK_CURRENTLY_ON(BrowserThread::UI);
 681   JNIEnv* env = AttachCurrentThread();
 682   ScopedJavaLocalRef<jobject> obj = java_ref_.get(env);
 683   if (obj.is_null())
 684     return;
 685
 686   Java_AwContents_onReceivedTouchIconUrl(
 687       env, obj.obj(), ConvertUTF8ToJavaString(env, url).obj(), precomposed);
 688 }
 689
 690 bool AwContents::RequestDrawGL(bool wait_for_completion) {
 691   DCHECK_CURRENTLY_ON(BrowserThread::UI);
 692   JNIEnv* env = AttachCurrentThread();
 693   ScopedJavaLocalRef<jobject> obj = java_ref_.get(env);
 694   if (obj.is_null())
 695     return false;
 696   return Java_AwContents_requestDrawGL(env, obj.obj(), wait_for_completion);
 697 }
 698
 699 void AwContents::PostInvalidate() {
 700   DCHECK_CURRENTLY_ON(BrowserThread::UI);
 701   JNIEnv* env = AttachCurrentThread();
 702   ScopedJavaLocalRef<jobject> obj = java_ref_.get(env);
 703   if (!obj.is_null())
 704     Java_AwContents_postInvalidateOnAnimation(env, obj.obj());
 705 }
 706
 707 void AwContents::OnNewPicture() {
 708   DCHECK_CURRENTLY_ON(BrowserThread::UI);
 709   JNIEnv* env = AttachCurrentThread();
 710   ScopedJavaLocalRef<jobject> obj = java_ref_.get(env);
 711   if (!obj.is_null()) {
 712     devtools_instrumentation::ScopedEmbedderCallbackTask embedder_callback(
 713         "onNewPicture");
 714     Java_AwContents_onNewPicture(env, obj.obj());
 715   }
 716 }
 717
 718 base::android::ScopedJavaLocalRef<jbyteArray>
 719     AwContents::GetCertificate(JNIEnv* env,
 720                                jobject obj) {
 721   DCHECK_CURRENTLY_ON(BrowserThread::UI);
 722   content::NavigationEntry* entry =
 723       web_contents_->GetController().GetActiveEntry();
 724   if (!entry)
 725     return ScopedJavaLocalRef<jbyteArray>();
 726   // Get the certificate
 727   int cert_id = entry->GetSSL().cert_id;
 728   scoped_refptr<net::X509Certificate> cert;
 729   bool ok = content::CertStore::GetInstance()->RetrieveCert(cert_id, &cert);
 730   if (!ok)
 731     return ScopedJavaLocalRef<jbyteArray>();
 732
 733   // Convert the certificate and return it
 734   std::string der_string;
 735   net::X509Certificate::GetDEREncoded(cert->os_cert_handle(), &der_string);
 736   return base::android::ToJavaByteArray(env,
 737       reinterpret_cast<const uint8*>(der_string.data()), der_string.length());
 738 }
 739
 740 void AwContents::RequestNewHitTestDataAt(JNIEnv* env,
 741                                          jobject obj,
 742                                          jfloat x,
 743                                          jfloat y,
 744                                          jfloat touch_major) {
 745   DCHECK_CURRENTLY_ON(BrowserThread::UI);
 746   gfx::PointF touch_center(x, y);
 747   gfx::SizeF touch_area(touch_major, touch_major);
 748   render_view_host_ext_->RequestNewHitTestDataAt(touch_center, touch_area);
 749 }
 750
 751 void AwContents::UpdateLastHitTestData(JNIEnv* env, jobject obj) {
 752   DCHECK_CURRENTLY_ON(BrowserThread::UI);
 753   if (!render_view_host_ext_->HasNewHitTestData()) return;
 754
 755   const AwHitTestData& data = render_view_host_ext_->GetLastHitTestData();
 756   render_view_host_ext_->MarkHitTestDataRead();
 757
 758   // Make sure to null the Java object if data is empty/invalid.
 759   ScopedJavaLocalRef<jstring> extra_data_for_type;
 760   if (data.extra_data_for_type.length())
 761     extra_data_for_type = ConvertUTF8ToJavaString(
 762         env, data.extra_data_for_type);
 763
 764   ScopedJavaLocalRef<jstring> href;
 765   if (data.href.length())
 766     href = ConvertUTF16ToJavaString(env, data.href);
 767
 768   ScopedJavaLocalRef<jstring> anchor_text;
 769   if (data.anchor_text.length())
 770     anchor_text = ConvertUTF16ToJavaString(env, data.anchor_text);
 771
 772   ScopedJavaLocalRef<jstring> img_src;
 773   if (data.img_src.is_valid())
 774     img_src = ConvertUTF8ToJavaString(env, data.img_src.spec());
 775
 776   Java_AwContents_updateHitTestData(env,
 777                                     obj,
 778                                     data.type,
 779                                     extra_data_for_type.obj(),
 780                                     href.obj(),
 781                                     anchor_text.obj(),
 782                                     img_src.obj());
 783 }
 784
 785 void AwContents::OnSizeChanged(JNIEnv* env, jobject obj,
 786                                int w, int h, int ow, int oh) {
 787   DCHECK_CURRENTLY_ON(BrowserThread::UI);
 788   browser_view_renderer_.OnSizeChanged(w, h);
 789 }
 790
 791 void AwContents::SetViewVisibility(JNIEnv* env, jobject obj, bool visible) {
 792   DCHECK_CURRENTLY_ON(BrowserThread::UI);
 793   browser_view_renderer_.SetViewVisibility(visible);
 794 }
 795
 796 void AwContents::SetWindowVisibility(JNIEnv* env, jobject obj, bool visible) {
 797   DCHECK_CURRENTLY_ON(BrowserThread::UI);
 798   browser_view_renderer_.SetWindowVisibility(visible);
 799 }
 800
 801 void AwContents::SetIsPaused(JNIEnv* env, jobject obj, bool paused) {
 802   DCHECK_CURRENTLY_ON(BrowserThread::UI);
 803   browser_view_renderer_.SetIsPaused(paused);
 804   ContentViewCore* cvc =
 805       ContentViewCore::FromWebContents(web_contents_.get());
 806   if (cvc) {
 807     cvc->PauseOrResumeGeolocation(paused);
 808   }
 809 }
 810
 811 void AwContents::OnAttachedToWindow(JNIEnv* env, jobject obj, int w, int h) {
 812   DCHECK_CURRENTLY_ON(BrowserThread::UI);
 813   browser_view_renderer_.OnAttachedToWindow(w, h);
 814 }
 815
 816 void AwContents::OnDetachedFromWindow(JNIEnv* env, jobject obj) {
 817   DCHECK_CURRENTLY_ON(BrowserThread::UI);
 818   browser_view_renderer_.OnDetachedFromWindow();
 819 }
 820
 821 void AwContents::DetachFunctorFromView() {
 822   JNIEnv* env = AttachCurrentThread();
 823   ScopedJavaLocalRef<jobject> obj = java_ref_.get(env);
 824   if (!obj.is_null())
 825     Java_AwContents_detachFunctorFromView(env, obj.obj());
 826 }
 827
 828 base::android::ScopedJavaLocalRef<jbyteArray>
 829 AwContents::GetOpaqueState(JNIEnv* env, jobject obj) {
 830   DCHECK_CURRENTLY_ON(BrowserThread::UI);
 831   // Required optimization in WebViewClassic to not save any state if
 832   // there has been no navigations.
 833   if (!web_contents_->GetController().GetEntryCount())
 834     return ScopedJavaLocalRef<jbyteArray>();
 835
 836   Pickle pickle;
 837   if (!WriteToPickle(*web_contents_, &pickle)) {
 838     return ScopedJavaLocalRef<jbyteArray>();
 839   } else {
 840     return base::android::ToJavaByteArray(env,
 841        reinterpret_cast<const uint8*>(pickle.data()), pickle.size());
 842   }
 843 }
 844
 845 jboolean AwContents::RestoreFromOpaqueState(
 846     JNIEnv* env, jobject obj, jbyteArray state) {
 847   DCHECK_CURRENTLY_ON(BrowserThread::UI);
 848   // TODO(boliu): This copy can be optimized out if this is a performance
 849   // problem.
 850   std::vector<uint8> state_vector;
 851   base::android::JavaByteArrayToByteVector(env, state, &state_vector);
 852
 853   Pickle pickle(reinterpret_cast<const char*>(state_vector.begin()),
 854                 state_vector.size());
 855   PickleIterator iterator(pickle);
 856
 857   return RestoreFromPickle(&iterator, web_contents_.get());
 858 }
 859
 860 bool AwContents::OnDraw(JNIEnv* env,
 861                         jobject obj,
 862                         jobject canvas,
 863                         jboolean is_hardware_accelerated,
 864                         jint scroll_x,
 865                         jint scroll_y,
 866                         jint visible_left,
 867                         jint visible_top,
 868                         jint visible_right,
 869                         jint visible_bottom) {
 870   DCHECK_CURRENTLY_ON(BrowserThread::UI);
 871   gfx::Vector2d scroll(scroll_x, scroll_y);
 872   browser_view_renderer_.PrepareToDraw(
 873       scroll, gfx::Rect(visible_left, visible_top, visible_right - visible_left,
 874                         visible_bottom - visible_top));
 875   if (is_hardware_accelerated && browser_view_renderer_.attached_to_window()) {
 876     return browser_view_renderer_.OnDrawHardware();
 877   }
 878
 879   gfx::Size view_size = browser_view_renderer_.size();
 880   if (view_size.IsEmpty()) {
 881     TRACE_EVENT_INSTANT0("android_webview", "EarlyOut_EmptySize",
 882                          TRACE_EVENT_SCOPE_THREAD);
 883     return false;
 884   }
 885
 886   // TODO(hush): Right now webview size is passed in as the auxiliary bitmap
 887   // size, which might hurt performace (only for software draws with auxiliary
 888   // bitmap). For better performance, get global visible rect, transform it
 889   // from screen space to view space, then intersect with the webview in
 890   // viewspace.  Use the resulting rect as the auxiliary bitmap.
 891   scoped_ptr<SoftwareCanvasHolder> canvas_holder =
 892       SoftwareCanvasHolder::Create(canvas, scroll, view_size);
 893   if (!canvas_holder || !canvas_holder->GetCanvas()) {
 894     TRACE_EVENT_INSTANT0("android_webview", "EarlyOut_EmptySize",
 895                          TRACE_EVENT_SCOPE_THREAD);
 896     return false;
 897   }
 898   return browser_view_renderer_.OnDrawSoftware(canvas_holder->GetCanvas());
 899 }
 900
 901 void AwContents::SetPendingWebContentsForPopup(
 902     scoped_ptr<content::WebContents> pending) {
 903   DCHECK_CURRENTLY_ON(BrowserThread::UI);
 904   if (pending_contents_.get()) {
 905     // TODO(benm): Support holding multiple pop up window requests.
 906     LOG(WARNING) << "Blocking popup window creation as an outstanding "
 907                  << "popup window is still pending.";
 908     base::MessageLoop::current()->DeleteSoon(FROM_HERE, pending.release());
 909     return;
 910   }
 911   pending_contents_.reset(new AwContents(pending.Pass()));
 912   // Set dip_scale for pending contents, which is necessary for the later
 913   // SynchronousCompositor and InputHandler setup.
 914   pending_contents_->SetDipScaleInternal(browser_view_renderer_.dip_scale());
 915 }
 916
 917 void AwContents::FocusFirstNode(JNIEnv* env, jobject obj) {
 918   DCHECK_CURRENTLY_ON(BrowserThread::UI);
 919   web_contents_->FocusThroughTabTraversal(false);
 920 }
 921
 922 void AwContents::SetBackgroundColor(JNIEnv* env, jobject obj, jint color) {
 923   DCHECK_CURRENTLY_ON(BrowserThread::UI);
 924   render_view_host_ext_->SetBackgroundColor(color);
 925 }
 926
 927 jlong AwContents::ReleasePopupAwContents(JNIEnv* env, jobject obj) {
 928   DCHECK_CURRENTLY_ON(BrowserThread::UI);
 929   return reinterpret_cast<intptr_t>(pending_contents_.release());
 930 }
 931
 932 gfx::Point AwContents::GetLocationOnScreen() {
 933   DCHECK_CURRENTLY_ON(BrowserThread::UI);
 934   JNIEnv* env = AttachCurrentThread();
 935   ScopedJavaLocalRef<jobject> obj = java_ref_.get(env);
 936   if (obj.is_null())
 937     return gfx::Point();
 938   std::vector<int> location;
 939   base::android::JavaIntArrayToIntVector(
 940       env,
 941       Java_AwContents_getLocationOnScreen(env, obj.obj()).obj(),
 942       &location);
 943   return gfx::Point(location[0], location[1]);
 944 }
 945
 946 void AwContents::ScrollContainerViewTo(gfx::Vector2d new_value) {
 947   DCHECK_CURRENTLY_ON(BrowserThread::UI);
 948   JNIEnv* env = AttachCurrentThread();
 949   ScopedJavaLocalRef<jobject> obj = java_ref_.get(env);
 950   if (obj.is_null())
 951     return;
 952   Java_AwContents_scrollContainerViewTo(
 953       env, obj.obj(), new_value.x(), new_value.y());
 954 }
 955
 956 bool AwContents::IsFlingActive() const {
 957   DCHECK_CURRENTLY_ON(BrowserThread::UI);
 958   JNIEnv* env = AttachCurrentThread();
 959   ScopedJavaLocalRef<jobject> obj = java_ref_.get(env);
 960   if (obj.is_null())
 961     return false;
 962   return Java_AwContents_isFlingActive(env, obj.obj());
 963 }
 964
 965 void AwContents::UpdateScrollState(gfx::Vector2d max_scroll_offset,
 966                                    gfx::SizeF contents_size_dip,
 967                                    float page_scale_factor,
 968                                    float min_page_scale_factor,
 969                                    float max_page_scale_factor) {
 970   DCHECK_CURRENTLY_ON(BrowserThread::UI);
 971   JNIEnv* env = AttachCurrentThread();
 972   ScopedJavaLocalRef<jobject> obj = java_ref_.get(env);
 973   if (obj.is_null())
 974     return;
 975   Java_AwContents_updateScrollState(env,
 976                                     obj.obj(),
 977                                     max_scroll_offset.x(),
 978                                     max_scroll_offset.y(),
 979                                     contents_size_dip.width(),
 980                                     contents_size_dip.height(),
 981                                     page_scale_factor,
 982                                     min_page_scale_factor,
 983                                     max_page_scale_factor);
 984 }
 985
 986 void AwContents::DidOverscroll(gfx::Vector2d overscroll_delta) {
 987   DCHECK_CURRENTLY_ON(BrowserThread::UI);
 988   JNIEnv* env = AttachCurrentThread();
 989   ScopedJavaLocalRef<jobject> obj = java_ref_.get(env);
 990   if (obj.is_null())
 991     return;
 992   Java_AwContents_didOverscroll(
 993       env, obj.obj(), overscroll_delta.x(), overscroll_delta.y());
 994 }
 995
 996 void AwContents::SetDipScale(JNIEnv* env, jobject obj, jfloat dip_scale) {
 997   DCHECK_CURRENTLY_ON(BrowserThread::UI);
 998   SetDipScaleInternal(dip_scale);
 999 }
1000
1001 void AwContents::SetDipScaleInternal(float dip_scale) {
1002   browser_view_renderer_.SetDipScale(dip_scale);
1003 }
1004
1005 void AwContents::ScrollTo(JNIEnv* env, jobject obj, jint x, jint y) {
1006   DCHECK_CURRENTLY_ON(BrowserThread::UI);
1007   browser_view_renderer_.ScrollTo(gfx::Vector2d(x, y));
1008 }
1009
1010 void AwContents::OnWebLayoutPageScaleFactorChanged(float page_scale_factor) {
1011   DCHECK_CURRENTLY_ON(BrowserThread::UI);
1012   JNIEnv* env = AttachCurrentThread();
1013   ScopedJavaLocalRef<jobject> obj = java_ref_.get(env);
1014   if (obj.is_null())
1015     return;
1016   Java_AwContents_onWebLayoutPageScaleFactorChanged(env, obj.obj(),
1017                                                          page_scale_factor);
1018 }
1019
1020 void AwContents::OnWebLayoutContentsSizeChanged(
1021     const gfx::Size& contents_size) {
1022   DCHECK_CURRENTLY_ON(BrowserThread::UI);
1023   JNIEnv* env = AttachCurrentThread();
1024   ScopedJavaLocalRef<jobject> obj = java_ref_.get(env);
1025   if (obj.is_null())
1026     return;
1027   Java_AwContents_onWebLayoutContentsSizeChanged(
1028       env, obj.obj(), contents_size.width(), contents_size.height());
1029 }
1030
1031 jlong AwContents::CapturePicture(JNIEnv* env,
1032                                  jobject obj,
1033                                  int width,
1034                                  int height) {
1035   DCHECK_CURRENTLY_ON(BrowserThread::UI);
1036   return reinterpret_cast<intptr_t>(
1037       new AwPicture(browser_view_renderer_.CapturePicture(width, height)));
1038 }
1039
1040 void AwContents::EnableOnNewPicture(JNIEnv* env,
1041                                     jobject obj,
1042                                     jboolean enabled) {
1043   DCHECK_CURRENTLY_ON(BrowserThread::UI);
1044   browser_view_renderer_.EnableOnNewPicture(enabled);
1045 }
1046
1047 namespace {
1048 void InvokeVisualStateCallback(const JavaObjectWeakGlobalRef& java_ref,
1049                                long request_id,
1050                                ScopedJavaGlobalRef<jobject>* callback,
1051                                bool result) {
1052   JNIEnv* env = AttachCurrentThread();
1053   ScopedJavaLocalRef<jobject> obj = java_ref.get(env);
1054   if (obj.is_null())
1055      return;
1056   Java_AwContents_invokeVisualStateCallback(
1057       env, obj.obj(), callback->obj(), request_id);
1058 }
1059 }  // namespace
1060
1061 void AwContents::InsertVisualStateCallback(
1062     JNIEnv* env, jobject obj, long request_id, jobject callback) {
1063   DCHECK_CURRENTLY_ON(BrowserThread::UI);
1064   ScopedJavaGlobalRef<jobject>* j_callback = new ScopedJavaGlobalRef<jobject>();
1065   j_callback->Reset(env, callback);
1066   web_contents_->GetMainFrame()->InsertVisualStateCallback(
1067       base::Bind(&InvokeVisualStateCallback, java_ref_, request_id,
1068                  base::Owned(j_callback)));
1069 }
1070
1071 void AwContents::ClearView(JNIEnv* env, jobject obj) {
1072   DCHECK_CURRENTLY_ON(BrowserThread::UI);
1073   browser_view_renderer_.ClearView();
1074 }
1075
1076 void AwContents::SetExtraHeadersForUrl(JNIEnv* env, jobject obj,
1077                                        jstring url, jstring jextra_headers) {
1078   std::string extra_headers;
1079   if (jextra_headers)
1080     extra_headers = ConvertJavaStringToUTF8(env, jextra_headers);
1081   AwResourceContext* resource_context = static_cast<AwResourceContext*>(
1082       AwBrowserContext::FromWebContents(web_contents_.get())->
1083       GetResourceContext());
1084   resource_context->SetExtraHeaders(GURL(ConvertJavaStringToUTF8(env, url)),
1085                                     extra_headers);
1086 }
1087
1088 void AwContents::SetJsOnlineProperty(JNIEnv* env,
1089                                      jobject obj,
1090                                      jboolean network_up) {
1091   DCHECK_CURRENTLY_ON(BrowserThread::UI);
1092   render_view_host_ext_->SetJsOnlineProperty(network_up);
1093 }
1094
1095 void AwContents::TrimMemory(JNIEnv* env,
1096                             jobject obj,
1097                             jint level,
1098                             jboolean visible) {
1099   DCHECK_CURRENTLY_ON(BrowserThread::UI);
1100   browser_view_renderer_.TrimMemory(level, visible);
1101 }
1102
1103 // TODO(sgurun) add support for posting a frame whose name is known (only
1104 //               main frame is supported at this time, see crbug.com/389721)
1105 void AwContents::PostMessageToFrame(JNIEnv* env, jobject obj,
1106     jstring frame_name, jstring message, jstring target_origin,
1107     jintArray sent_ports) {
1108
1109   // Use an empty source origin for android webview.
1110   base::string16 source_origin;
1111   base::string16 j_target_origin(ConvertJavaStringToUTF16(env, target_origin));
1112   base::string16 j_message(ConvertJavaStringToUTF16(env, message));
1113   std::vector<int> j_ports;
1114
1115   if (sent_ports != nullptr) {
1116     base::android::JavaIntArrayToIntVector(env, sent_ports, &j_ports);
1117     BrowserThread::PostTask(
1118         BrowserThread::IO,
1119         FROM_HERE,
1120         base::Bind(&AwMessagePortServiceImpl::RemoveSentPorts,
1121                    base::Unretained(AwMessagePortServiceImpl::GetInstance()),
1122                    j_ports));
1123   }
1124   std::vector<content::TransferredMessagePort> ports(j_ports.size());
1125   for (size_t i = 0; i < j_ports.size(); ++i)
1126     ports[i].id = j_ports[i];
1127   content::MessagePortProvider::PostMessageToFrame(web_contents_.get(),
1128                                                    source_origin,
1129                                                    j_target_origin,
1130                                                    j_message,
1131                                                    ports);
1132 }
1133
1134 scoped_refptr<AwMessagePortMessageFilter>
1135 AwContents::GetMessagePortMessageFilter() {
1136   // Create a message port message filter if necessary
1137   if (message_port_message_filter_.get() == nullptr) {
1138     message_port_message_filter_ =
1139         new AwMessagePortMessageFilter(
1140             web_contents_->GetMainFrame()->GetRoutingID());
1141     web_contents_->GetRenderProcessHost()->AddFilter(
1142         message_port_message_filter_.get());
1143   }
1144   return message_port_message_filter_;
1145 }
1146
1147 void AwContents::CreateMessageChannel(JNIEnv* env, jobject obj,
1148     jobjectArray ports) {
1149
1150   AwMessagePortServiceImpl::GetInstance()->CreateMessageChannel(env, ports,
1151       GetMessagePortMessageFilter());
1152 }
1153
1154 void SetShouldDownloadFavicons(JNIEnv* env, jclass jclazz) {
1155   g_should_download_favicons = true;
1156 }
1157
1158 }  // namespace android_webview