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

chrome/browser/extensions/api/developer_private/developer_private_api.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 "chrome/browser/extensions/api/developer_private/developer_private_api.h"
 
 #include "apps/app_load_service.h"
 #include "apps/app_window.h"
 #include "apps/app_window_registry.h"
 #include "apps/saved_files_service.h"
@@ skipping 879 matching lines @@
     // Wakes up the background page and  opens the inspect window.
     devtools_util::InspectBackgroundPage(extension, GetProfile());
     return false;
   }
 
   int render_view_id;
   base::StringToInt(options.render_view_id, &render_view_id);
   content::RenderViewHost* host = content::RenderViewHost::FromID(
       render_process_id, render_view_id);
 
-  if (!host) {
+  if (!host || !content::WebContents::FromRenderViewHost(host)) {
     // This can happen if the host has gone away since the page was displayed.
     return false;
   }
 
-  DevToolsWindow::OpenDevToolsWindow(host);
+  DevToolsWindow::OpenDevToolsWindow(
+      content::WebContents::FromRenderViewHost(host));
   return true;
 }
 
 DeveloperPrivateInspectFunction::~DeveloperPrivateInspectFunction() {}
 
 bool DeveloperPrivateLoadUnpackedFunction::RunAsync() {
   base::string16 select_title =
       l10n_util::GetStringUTF16(IDS_EXTENSION_LOAD_FROM_DIRECTORY);
 
   // Balanced in FileSelected / FileSelectionCanceled.
@@ skipping 482 matching lines @@
   }
 
   error_ui_util::HandleOpenDevTools(dict);
 
   return true;
 }
 
 }  // namespace api
 
 }  // namespace extensions