DevTools: migrate DevTools APIs to use WebContents instead of RenderViewHost.

content/shell/browser/shell_devtools_frontend.cc

 // Copyright 2013 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/shell/browser/shell_devtools_frontend.h"
 
 #include "base/command_line.h"
 #include "base/json/json_reader.h"
 #include "base/path_service.h"
 #include "base/strings/string_number_conversions.h"
@@ skipping 48 matching lines @@
     WebContents* inspected_contents) {
   return ShellDevToolsFrontend::Show(inspected_contents, "", "");
 }
 
 // static
 ShellDevToolsFrontend* ShellDevToolsFrontend::Show(
     WebContents* inspected_contents,
     const std::string& settings,
     const std::string& frontend_url) {
   scoped_refptr<DevToolsAgentHost> agent(
-      DevToolsAgentHost::GetOrCreateFor(
-          inspected_contents->GetRenderViewHost()));
+      DevToolsAgentHost::GetOrCreateFor(inspected_contents));
   Shell* shell = Shell::CreateNewWindow(inspected_contents->GetBrowserContext(),
                                         GURL(),
                                         NULL,
                                         MSG_ROUTING_NONE,
                                         gfx::Size());
   ShellDevToolsFrontend* devtools_frontend = new ShellDevToolsFrontend(
       shell,
       agent.get());
 
   ShellDevToolsDelegate* delegate = ShellContentBrowserClient::Get()->
@@ skipping 100 matching lines @@
     const std::string& message) {
   if (frontend_host_)
     frontend_host_->DispatchOnDevToolsFrontend(message);
 }
 
 void ShellDevToolsFrontend::InspectedContentsClosing() {
   frontend_shell_->Close();
 }
 
 }  // namespace content