Move more files into the content namespace.

content/browser/renderer_host/render_widget_helper.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 "content/browser/renderer_host/render_widget_helper.h"
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/eintr_wrapper.h"
 #include "base/lazy_instance.h"
 #include "base/threading/thread.h"
 #include "base/threading/thread_restrictions.h"
 #include "content/browser/gpu/gpu_surface_tracker.h"
 #include "content/browser/renderer_host/render_process_host_impl.h"
 #include "content/browser/renderer_host/render_view_host_impl.h"
 #include "content/browser/renderer_host/resource_dispatcher_host_impl.h"
 #include "content/browser/dom_storage/session_storage_namespace_impl.h"
 #include "content/common/view_messages.h"
 
-using content::BrowserThread;
-using content::RenderViewHostImpl;
-using content::ResourceDispatcherHostImpl;
-using content::SessionStorageNamespace;
-
+namespace content {
 namespace {
 
 typedef std::map<int, RenderWidgetHelper*> WidgetHelperMap;
 base::LazyInstance<WidgetHelperMap> g_widget_helpers =
     LAZY_INSTANCE_INITIALIZER;
 
 void AddWidgetHelper(int render_process_id,
                      const scoped_refptr<RenderWidgetHelper>& widget_helper) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
   // We don't care if RenderWidgetHelpers overwrite an existing process_id. Just
@@ skipping 194 matching lines @@
     if (queue.empty())
       pending_paints_.erase(it);
   }
 }
 
 void RenderWidgetHelper::OnDispatchBackingStoreMsg(
     BackingStoreMsgProxy* proxy) {
   OnDiscardBackingStoreMsg(proxy);
 
   // It is reasonable for the host to no longer exist.
-  content::RenderProcessHost* host =
-      content::RenderProcessHost::FromID(render_process_id_);
+  RenderProcessHost* host = RenderProcessHost::FromID(render_process_id_);
   if (host)
     host->OnMessageReceived(proxy->message());
 }
 
 void RenderWidgetHelper::OnCancelResourceRequests(
     int render_widget_id) {
   resource_dispatcher_host_->CancelRequestsForRoute(
       render_process_id_, render_widget_id);
 }
 
@@ skipping 149 matching lines @@
 void RenderWidgetHelper::ClearAllocatedDIBs() {
   for (std::map<TransportDIB::Id, int>::iterator
        i = allocated_dibs_.begin(); i != allocated_dibs_.end(); ++i) {
     if (HANDLE_EINTR(close(i->second)) < 0)
       PLOG(ERROR) << "close: " << i->first;
   }
 
   allocated_dibs_.clear();
 }
 #endif
+
+}  // namespace content