Refine tap disambiguation UMA to track same-node/different-node.

content/common/view_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.
 
 // IPC messages for page rendering.
 // Multiply-included message file, hence no include guard.
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 552 matching lines @@
                     base::ProcessId /* broker_pid */,
                     IPC::ChannelHandle /* handle */)
 
 // Reply to ViewHostMsg_RequestPpapiBrokerPermission.
 // Tells the renderer whether permission to access to PPAPI broker was granted
 // or not.
 IPC_MESSAGE_ROUTED1(ViewMsg_PpapiBrokerPermissionResult,
                     bool /* result */)
 #endif
 
-// An acknowledge to ViewHostMsg_MultipleTargetsTouched to notify the renderer
-// process to release the magnified image.
+// An acknowledgement to ViewHostMsg_ShowDisambiguationPopup to notify the
+// renderer process to release the magnified image.
 IPC_MESSAGE_ROUTED1(ViewMsg_ReleaseDisambiguationPopupBitmap,
                     cc::SharedBitmapId /* id */)
 
+// If the ViewHostMsg_ShowDisambiguationPopup resulted in the user tapping
+// inside the popup, instruct the renderer to generate a synthetic tap at that
+// offset.
+IPC_MESSAGE_ROUTED3(ViewMsg_ResolveTapDisambiguation,
+                    double /* timestamp_seconds */,
+                    gfx::Point /* tap_viewport_offset */,
+                    bool /* is_long_press */)
+
 // Fetches complete rendered content of a web page as plain text.
 IPC_MESSAGE_ROUTED0(ViewMsg_GetRenderedText)
 
 #if defined(OS_ANDROID)
 // Notifies the renderer whether hiding/showing the browser controls is enabled
 // and whether or not to animate to the proper state.
 IPC_MESSAGE_ROUTED3(ViewMsg_UpdateBrowserControlsState,
                     bool /* enable_hiding */,
                     bool /* enable_showing */,
                     bool /* animate */)
@@ skipping 296 matching lines @@
                     int /* y */)
 
 #elif defined(OS_MACOSX)
 // Receives content of a web page as plain text.
 IPC_MESSAGE_ROUTED1(ViewMsg_GetRenderedTextCompleted, std::string)
 #endif
 
 // Adding a new message? Stick to the sort order above: first platform
 // independent ViewMsg, then ifdefs for platform specific ViewMsg, then platform
 // independent ViewHostMsg, then ifdefs for platform specific ViewHostMsg.