[DevTools] Only create DevToolsAgent for local main frame.

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 759 matching lines @@
     OnEnableAutoResize(params.min_size, params.max_size);
   }
 
   new MHTMLGenerator(this);
 #if defined(OS_MACOSX)
   new TextInputClientObserver(this);
 #endif  // defined(OS_MACOSX)
 
   // The next group of objects all implement RenderViewObserver, so are deleted
   // along with the RenderView automatically.
-  devtools_agent_ = new DevToolsAgent(main_render_frame_.get());
-  if (RenderWidgetCompositor* rwc = compositor()) {
-    webview()->devToolsAgent()->setLayerTreeId(rwc->GetLayerTreeId());
+  if (!proxy) {
+    devtools_agent_ = new DevToolsAgent(main_render_frame_.get());
+    if (RenderWidgetCompositor* rwc = compositor())
+      webview()->devToolsAgent()->setLayerTreeId(rwc->GetLayerTreeId());
   }
+
   mouse_lock_dispatcher_ = new RenderViewMouseLockDispatcher(this);
 
   history_controller_.reset(new HistoryController(this));
 
   new IdleUserDetector(this);
 
   if (command_line.HasSwitch(switches::kDomAutomationController))
     enabled_bindings_ |= BINDINGS_POLICY_DOM_AUTOMATION;
   if (command_line.HasSwitch(switches::kStatsCollectionController))
     enabled_bindings_ |= BINDINGS_POLICY_STATS_COLLECTION;
@@ skipping 3167 matching lines @@
     std::vector<gfx::Size> sizes;
     ConvertToFaviconSizes(icon_urls[i].sizes(), &sizes);
     if (!url.isEmpty())
       urls.push_back(
           FaviconURL(url, ToFaviconType(icon_urls[i].iconType()), sizes));
   }
   SendUpdateFaviconURL(urls);
 }
 
 }  // namespace content