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

chrome/browser/ui/panels/panel.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/ui/panels/panel.h"
 
 #include "base/logging.h"
 #include "base/message_loop/message_loop.h"
 #include "base/strings/utf_string_conversions.h"
 #include "chrome/app/chrome_command_ids.h"
@@ skipping 398 matching lines @@
       panel_host_->Zoom(content::PAGE_ZOOM_RESET);
       break;
     case IDC_ZOOM_MINUS:
       panel_host_->Zoom(content::PAGE_ZOOM_OUT);
       break;
 
     // DevTools
     case IDC_DEV_TOOLS:
       content::RecordAction(UserMetricsAction("DevTools_ToggleWindow"));
       DevToolsWindow::OpenDevToolsWindow(
-          GetWebContents()->GetRenderViewHost(),
+          GetWebContents(),
           DevToolsToggleAction::Show());
       break;
     case IDC_DEV_TOOLS_CONSOLE:
       content::RecordAction(UserMetricsAction("DevTools_ToggleConsole"));
       DevToolsWindow::OpenDevToolsWindow(
-          GetWebContents()->GetRenderViewHost(),
+          GetWebContents(),
           DevToolsToggleAction::ShowConsole());
       break;
 
     default:
       LOG(WARNING) << "Received unimplemented command: " << id;
       break;
   }
 }
 
 void Panel::Observe(int type,
@@ skipping 459 matching lines @@
 // static
 void Panel::FormatTitleForDisplay(base::string16* title) {
   size_t current_index = 0;
   size_t match_index;
   while ((match_index = title->find(L'\n', current_index)) !=
          base::string16::npos) {
     title->replace(match_index, 1, base::string16());
     current_index = match_index;
   }
 }