Revert of Disable elastic overscroll effect in DevTools.

content/browser/devtools/devtools_frontend_host_impl.cc

 // Copyright 2014 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/browser/devtools/devtools_frontend_host_impl.h"
 
-#include "content/browser/frame_host/render_frame_host_impl.h"
-#include "content/browser/renderer_host/render_widget_host_impl.h"
 #include "content/common/devtools_messages.h"
 #include "content/public/browser/navigation_entry.h"
 #include "content/public/browser/render_frame_host.h"
 #include "content/public/browser/web_contents.h"
 
 namespace content {
 
 // static
 DevToolsFrontendHost* DevToolsFrontendHost::Create(
     RenderFrameHost* frontend_main_frame,
     DevToolsFrontendHost::Delegate* delegate) {
   return new DevToolsFrontendHostImpl(frontend_main_frame, delegate);
 }
 
 DevToolsFrontendHostImpl::DevToolsFrontendHostImpl(
     RenderFrameHost* frontend_main_frame,
     DevToolsFrontendHost::Delegate* delegate)
     : WebContentsObserver(
           WebContents::FromRenderFrameHost(frontend_main_frame)),
       delegate_(delegate) {
   frontend_main_frame->Send(
       new DevToolsMsg_SetupDevToolsClient(frontend_main_frame->GetRoutingID()));
 }
 
 DevToolsFrontendHostImpl::~DevToolsFrontendHostImpl() {
 }
 
-void DevToolsFrontendHostImpl::RenderFrameCreated(RenderFrameHost* rfh) {
-  static_cast<RenderFrameHostImpl*>(rfh)->GetRenderWidgetHost()->
-      DisableElasticOverscroll();
-}
-
 bool DevToolsFrontendHostImpl::OnMessageReceived(
     const IPC::Message& message,
     RenderFrameHost* render_frame_host) {
   if (render_frame_host != web_contents()->GetMainFrame())
     return false;
   bool handled = true;
   IPC_BEGIN_MESSAGE_MAP(DevToolsFrontendHostImpl, message)
     IPC_MESSAGE_HANDLER(DevToolsAgentMsg_DispatchOnInspectorBackend,
                         OnDispatchOnInspectorBackend)
     IPC_MESSAGE_HANDLER(DevToolsHostMsg_DispatchOnEmbedder,
                         OnDispatchOnEmbedder)
     IPC_MESSAGE_UNHANDLED(handled = false)
   IPC_END_MESSAGE_MAP()
   return handled;
 }
 
 void DevToolsFrontendHostImpl::OnDispatchOnInspectorBackend(
     const std::string& message) {
   delegate_->HandleMessageFromDevToolsFrontendToBackend(message);
 }
 
 void DevToolsFrontendHostImpl::OnDispatchOnEmbedder(
     const std::string& message) {
   delegate_->HandleMessageFromDevToolsFrontend(message);
 }
 
 }  // namespace content