Fix some extern usage in .cc files.

content/browser/renderer_host/render_process_host_impl.cc

 // Copyright 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.
 
 // Represents the browser side of the browser <--> renderer communication
 // channel. There will be one RenderProcessHost per renderer process.
 
 #include "content/browser/renderer_host/render_process_host_impl.h"
 
 #include <algorithm>
@@ skipping 193 matching lines @@
 
 #if defined(ENABLE_WEBRTC)
 #include "content/browser/media/webrtc_internals.h"
 #include "content/browser/renderer_host/media/media_stream_track_metrics_host.h"
 #include "content/browser/renderer_host/media/webrtc_identity_service_host.h"
 #include "content/browser/renderer_host/p2p/socket_dispatcher_host.h"
 #include "content/common/media/aec_dump_messages.h"
 #include "content/common/media/media_stream_messages.h"
 #endif
 
-extern bool g_exited_main_message_loop;
-
 namespace content {
 namespace {
 
 const char kSiteProcessMapKeyName[] = "content_site_process_map";
 
 void CacheShaderInfo(int32 id, base::FilePath path) {
   ShaderCacheFactory::GetInstance()->SetCacheInfo(id, path);
 }
 
 void RemoveShaderInfo(int32 id) {
@@ skipping 284 matching lines @@
       worker_ref_count_(0),
       max_worker_count_(0),
       permission_service_context_(new PermissionServiceContext(this)),
       pending_valuebuffer_state_(new gpu::ValueStateMap()),
       subscribe_uniform_enabled_(false),
       weak_factory_(this) {
   widget_helper_ = new RenderWidgetHelper();
 
   ChildProcessSecurityPolicyImpl::GetInstance()->Add(GetID());
 
-  CHECK(!g_exited_main_message_loop);
+  CHECK(!BrowserMainRunner::ExitedMainMessageLoop());
   RegisterHost(GetID(), this);
   g_all_hosts.Get().set_check_on_null_data(true);
   // Initialize |child_process_activity_time_| to a reasonable value.
   mark_child_process_activity_time();
 
   if (!GetBrowserContext()->IsOffTheRecord() &&
       !base::CommandLine::ForCurrentProcess()->HasSwitch(
           switches::kDisableGpuShaderDiskCache)) {
     BrowserThread::PostTask(BrowserThread::IO, FROM_HERE,
                             base::Bind(&CacheShaderInfo, GetID(),
@@ skipping 1995 matching lines @@
 void RenderProcessHostImpl::GetAudioOutputControllers(
     const GetAudioOutputControllersCallback& callback) const {
   audio_renderer_host()->GetOutputControllers(callback);
 }
 
 BluetoothDispatcherHost* RenderProcessHostImpl::GetBluetoothDispatcherHost() {
   return bluetooth_dispatcher_host_.get();
 }
 
 }  // namespace content