Upstream support for WebKit shared timer toggling.

chrome/renderer/chrome_render_process_observer.cc

Index: chrome/renderer/chrome_render_process_observer.cc
diff --git a/chrome/renderer/chrome_render_process_observer.cc b/chrome/renderer/chrome_render_process_observer.cc
index 410636021581ebe20aad8552a2619e578aa17c87..9b2bb92b19d70256f3b6389850eb6b42d0850ff2 100644
--- a/chrome/renderer/chrome_render_process_observer.cc
+++ b/chrome/renderer/chrome_render_process_observer.cc
@@ -233,6 +233,8 @@ bool ChromeRenderProcessObserver::OnControlMessageReceived(
     IPC_MESSAGE_HANDLER(ChromeViewMsg_PurgeMemory, OnPurgeMemory)
     IPC_MESSAGE_HANDLER(ChromeViewMsg_SetContentSettingRules,
                         OnSetContentSettingRules)
+    IPC_MESSAGE_HANDLER(ChromeViewMsg_ToggleWebKitSharedTimer,
+                        OnToggleWebKitSharedTimer)
     IPC_MESSAGE_UNHANDLED(handled = false)
   IPC_END_MESSAGE_MAP()
   return handled;
@@ -320,6 +322,10 @@ void ChromeRenderProcessObserver::OnGetV8HeapStats() {
       heap_stats.total_heap_size(), heap_stats.used_heap_size()));
 }
 
+void ChromeRenderProcessObserver::OnToggleWebKitSharedTimer(bool suspend) {
+  RenderThread::Get()->ToggleWebKitSharedTimer(suspend);
+}
+
 void ChromeRenderProcessObserver::OnPurgeMemory() {
   RenderThread::Get()->EnsureWebKitInitialized();