Upstream support for WebKit shared timer toggling.

content/renderer/render_thread_impl.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/renderer/render_thread_impl.h"
 
 #include <algorithm>
 #include <limits>
 #include <map>
 #include <vector>
@@ skipping 831 matching lines @@
       RenderViewImpl* view = RenderViewImpl::FromWebView(frame->view());
       if (view)
         routing_id = view->routing_id();
     }
   } else {
     DLOG(WARNING) << "Not called within a script context!";
   }
   return routing_id;
 }
 
+void RenderThreadImpl::ToggleWebKitSharedTimer(bool suspend) {
+  if (suspend_webkit_shared_timer_) {
+    EnsureWebKitInitialized();
+    if (suspend) {
+      webkit_platform_support_->SuspendSharedTimer();
+    } else {
+      webkit_platform_support_->ResumeSharedTimer();
+    }
+  }
+}
+
 void RenderThreadImpl::DoNotSuspendWebKitSharedTimer() {
   suspend_webkit_shared_timer_ = false;
 }
 
 void RenderThreadImpl::DoNotNotifyWebKitOfModalLoop() {
   notify_webkit_of_modal_loop_ = false;
 }
 
 void RenderThreadImpl::OnSetZoomLevelForCurrentURL(const std::string& host,
                                                    double zoom_level) {
@@ skipping 163 matching lines @@
 
 scoped_refptr<base::MessageLoopProxy>
 RenderThreadImpl::GetFileThreadMessageLoopProxy() {
   DCHECK(message_loop() == MessageLoop::current());
   if (!file_thread_.get()) {
     file_thread_.reset(new base::Thread("Renderer::FILE"));
     file_thread_->Start();
   }
   return file_thread_->message_loop_proxy();
 }