Upstream support for WebKit shared timer toggling.

chrome/common/render_messages.h

 // 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.
 
 // Multiply-included file, no traditional include guard.
 #include <map>
 #include <set>
 #include <string>
 #include <vector>
 
@@ skipping 328 matching lines @@
 IPC_MESSAGE_ROUTED2(ChromeViewMsg_JavaScriptStressTestControl,
                     int /* cmd */,
                     int /* param */)
 
 // Asks the renderer to send back FPS.
 IPC_MESSAGE_ROUTED0(ChromeViewMsg_GetFPS)
 
 // Tells the view it is displaying an interstitial page.
 IPC_MESSAGE_ROUTED0(ChromeViewMsg_SetAsInterstitial)
 
+// Tells the renderer to suspend/resume the webkit timers.
+IPC_MESSAGE_CONTROL1(ChromeViewMsg_ToggleWebKitSharedTimer,
+                     bool /* suspend */)
+
 //-----------------------------------------------------------------------------
 // Misc messages
 // These are messages sent from the renderer to the browser process.
 
 // Provides the contents for the given page that was loaded recently.
 IPC_MESSAGE_ROUTED3(ChromeViewHostMsg_PageContents,
                     GURL         /* URL of the page */,
                     int32        /* page id */,
                     string16     /* page contents */)
 
@@ skipping 266 matching lines @@
 // previous SetCookie message to be processed.
 IPC_SYNC_MESSAGE_ROUTED2_1(ChromeViewHostMsg_GetCookies,
                            GURL /* url */,
                            GURL /* first_party_for_cookies */,
                            std::string /* cookies */)
 
 // Provide the browser process with current renderer framerate.
 IPC_MESSAGE_CONTROL2(ChromeViewHostMsg_FPS,
                      int /* routing id */,
                      float /* frames per second */)