Handle pointer-events: none in browser process hittesting.

content/common/frame_messages.h

 // Copyright 2013 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.
 
 // IPC messages for interacting with frames.
 // Multiply-included message file, hence no include guard.
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 472 matching lines @@
   // |salt + url.spec()|.
   IPC_STRUCT_MEMBER(std::set<std::string>, digests_of_uris_to_skip)
 
   // Salt used for |digests_of_uris_to_skip|.
   IPC_STRUCT_MEMBER(std::string, salt)
 
   // If |is_last_frame| is true, then an MHTML footer will be generated.
   IPC_STRUCT_MEMBER(bool, is_last_frame)
 IPC_STRUCT_END()
 
+// This message is used to send hittesting data from the renderer in order
+// to perform hittesting on the browser process.
+IPC_STRUCT_BEGIN(FrameHostMsg_HittestData_Params)
+  // |surface_id| represents the surface used by this remote frame.
+  IPC_STRUCT_MEMBER(cc::SurfaceId, surface_id)
+
+  // If |ignored_for_hittest| then this surface should be ignored during
+  // hittesting.
+  IPC_STRUCT_MEMBER(bool, ignored_for_hittest)
+IPC_STRUCT_END()
+
 #if defined(OS_MACOSX) || defined(OS_ANDROID)
 // This message is used for supporting popup menus on Mac OS X and Android using
 // native controls. See the FrameHostMsg_ShowPopup message.
 IPC_STRUCT_BEGIN(FrameHostMsg_ShowPopup_Params)
   // Position on the screen.
   IPC_STRUCT_MEMBER(gfx::Rect, bounds)
 
   // The height of each item in the menu.
   IPC_STRUCT_MEMBER(int, item_height)
 
@@ skipping 851 matching lines @@
 
 // This message is sent from a RenderFrameProxy when sequential focus
 // navigation needs to advance into its actual frame.  |source_routing_id|
 // identifies the frame that issued this request.  This is used when pressing
 // <tab> or <shift-tab> hits an out-of-process iframe when searching for the
 // next focusable element.
 IPC_MESSAGE_ROUTED2(FrameHostMsg_AdvanceFocus,
                     blink::WebFocusType /* type */,
                     int32_t /* source_routing_id */)
 
+// Sends hittesting data needed to perform hittesting on the browser process.
+IPC_MESSAGE_ROUTED1(FrameHostMsg_HittestData, FrameHostMsg_HittestData_Params)
+
 #if defined(OS_MACOSX) || defined(OS_ANDROID)
 
 // Message to show/hide a popup menu using native controls.
 IPC_MESSAGE_ROUTED1(FrameHostMsg_ShowPopup,
                     FrameHostMsg_ShowPopup_Params)
 IPC_MESSAGE_ROUTED0(FrameHostMsg_HidePopup)
 
 #endif
 
 // Adding a new message? Stick to the sort order above: first platform
 // independent FrameMsg, then ifdefs for platform specific FrameMsg, then
 // platform independent FrameHostMsg, then ifdefs for platform specific
 // FrameHostMsg.