Switch ContentSettingsObserver to be a RenderFrameObserver instead of a RenderViewObserver

content/renderer/render_view_impl.cc

 // Copyright (c) 2012 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 "content/renderer/render_view_impl.h"
 
 #include <algorithm>
 #include <cmath>
 
 #include "base/auto_reset.h"
@@ skipping 935 matching lines @@
   webview()->settings()->setCompositedScrollingForFramesEnabled(
       ShouldUseCompositedScrollingForFrames(device_scale_factor_));
 
   ApplyWebPreferences(webkit_preferences_, webview());
 
   main_render_frame_.reset(
       RenderFrameImpl::Create(this, params->main_frame_routing_id));
   // The main frame WebFrame object is closed by
   // RenderViewImpl::frameDetached().
   webview()->setMainFrame(WebFrame::create(main_render_frame_.get()));
+  main_render_frame_->MainWebFrameCreated(webview()->mainFrame());
 
   if (switches::IsTouchDragDropEnabled())
     webview()->settings()->setTouchDragDropEnabled(true);
 
   if (switches::IsTouchEditingEnabled())
     webview()->settings()->setTouchEditingEnabled(true);
 
   if (!params->frame_name.empty())
     webview()->mainFrame()->setName(params->frame_name);
 
@@ skipping 5471 matching lines @@
   for (size_t i = 0; i < icon_urls.size(); i++) {
     WebURL url = icon_urls[i].iconURL();
     if (!url.isEmpty())
       urls.push_back(FaviconURL(url,
                                 ToFaviconType(icon_urls[i].iconType())));
   }
   SendUpdateFaviconURL(urls);
 }
 
 }  // namespace content