Implements frame sniffer to watch iframe loading state.

chrome/renderer/chrome_render_view_observer.cc

 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/renderer/chrome_render_view_observer.h"
 
 #include "base/command_line.h"
 #include "base/message_loop.h"
 #include "base/metrics/histogram.h"
 #include "base/string_util.h"
 #include "chrome/common/chrome_constants.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/common/icon_messages.h"
 #include "chrome/common/render_messages.h"
 #include "chrome/common/thumbnail_score.h"
 #include "chrome/common/url_constants.h"
 #include "chrome/renderer/about_handler.h"
+#include "chrome/renderer/automation/dom_automation_controller.h"
 #include "chrome/renderer/content_settings_observer.h"
-#include "chrome/renderer/automation/dom_automation_controller.h"
 #include "chrome/renderer/extensions/extension_dispatcher.h"
 #include "chrome/renderer/external_host_bindings.h"
+#include "chrome/renderer/frame_sniffer.h"
 #include "chrome/renderer/prerender/prerender_helper.h"
 #include "chrome/renderer/safe_browsing/phishing_classifier_delegate.h"
 #include "chrome/renderer/translate_helper.h"
 #include "content/common/bindings_policy.h"
 #include "content/common/view_messages.h"
 #include "content/renderer/content_renderer_client.h"
 #include "googleurl/src/gurl.h"
 #include "net/base/data_url.h"
 #include "skia/ext/image_operations.h"
 #include "skia/ext/platform_canvas.h"
@@ skipping 192 matching lines @@
                         OnHandleMessageFromExternalHost)
     IPC_MESSAGE_HANDLER(ChromeViewMsg_JavaScriptStressTestControl,
                         OnJavaScriptStressTestControl)
     IPC_MESSAGE_HANDLER(IconMsg_DownloadFavicon, OnDownloadFavicon)
     IPC_MESSAGE_HANDLER(ChromeViewMsg_SetAllowDisplayingInsecureContent,
                         OnSetAllowDisplayingInsecureContent)
     IPC_MESSAGE_HANDLER(ChromeViewMsg_SetAllowRunningInsecureContent,
                         OnSetAllowRunningInsecureContent)
     IPC_MESSAGE_HANDLER(ChromeViewMsg_SetClientSidePhishingDetection,
                         OnSetClientSidePhishingDetection)
+    IPC_MESSAGE_HANDLER(ViewMsg_StartFrameSniffer, OnStartFrameSniffer)
     IPC_MESSAGE_UNHANDLED(handled = false)
   IPC_END_MESSAGE_MAP()
 
   // Filter only.
   IPC_BEGIN_MESSAGE_MAP(ChromeRenderViewObserver, message)
     IPC_MESSAGE_HANDLER(ViewMsg_Navigate, OnNavigate)
     IPC_MESSAGE_HANDLER(ChromeViewMsg_SetIsPrerendering, OnSetIsPrerendering);
   IPC_END_MESSAGE_MAP()
 
   return handled;
@@ skipping 83 matching lines @@
 void ChromeRenderViewObserver::OnSetClientSidePhishingDetection(
     bool enable_phishing_detection) {
 #if defined(ENABLE_SAFE_BROWSING) && !defined(OS_CHROMEOS)
   phishing_classifier_ = enable_phishing_detection ?
       safe_browsing::PhishingClassifierDelegate::Create(
           render_view(), NULL) :
       NULL;
 #endif
 }
 
+void ChromeRenderViewObserver::OnStartFrameSniffer(const string16& frame_name) {
+  new FrameSniffer(render_view(), frame_name);
+}
+
 bool ChromeRenderViewObserver::allowDatabase(
     WebFrame* frame,
     const WebString& name,
     const WebString& display_name,
     unsigned long estimated_size) {
   return content_settings_->AllowDatabase(
       frame, name, display_name, estimated_size);
 }
 
 bool ChromeRenderViewObserver::allowFileSystem(WebFrame* frame) {
@@ skipping 607 matching lines @@
   if (net::DataURL::Parse(url, &mime_type, &char_set, &data) && !data.empty()) {
     // Decode the favicon using WebKit's image decoder.
     webkit_glue::ImageDecoder decoder(gfx::Size(kFaviconSize, kFaviconSize));
     const unsigned char* src_data =
         reinterpret_cast<const unsigned char*>(&data[0]);
 
     return decoder.Decode(src_data, data.size());
   }
   return SkBitmap();
 }