Fix page zoom to be frame-centric for out-of-process frames.

content/common/frame_messages.h

Index: content/common/frame_messages.h
diff --git a/content/common/frame_messages.h b/content/common/frame_messages.h
index d8e5931037314370feaff3f5ee0e54216d962fb8..165b61a29e6fb430ca98baabb3a8a09cba21936b 100644
--- a/content/common/frame_messages.h
+++ b/content/common/frame_messages.h
@@ -790,6 +790,15 @@ IPC_MESSAGE_ROUTED1(FrameMsg_SetTextTrackSettings,
 // Posts a message from a frame in another process to the current renderer.
 IPC_MESSAGE_ROUTED1(FrameMsg_PostMessageEvent, FrameMsg_PostMessage_Params)
 
+// Instructs the frame to set its zoom level to match the owning WebContents.
+IPC_MESSAGE_ROUTED2(FrameMsg_SetTemporaryZoomLevel,
+                    double /* zoom_level*/,
+                    bool /* is_temporary */)
+
+// Instructs the frame to set its zoom level to match the owning WebContents.
+IPC_MESSAGE_ROUTED1(FrameMsg_SetZoomLevelFromWebContents,
+                    double /* zoom_level*/)
+
 #if defined(OS_ANDROID)
 // Sent when the browser wants the bounding boxes of the current find matches.
 //