Make Paste Popup use selection rect for positioning

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 142 matching lines @@
   IPC_STRUCT_TRAITS_MEMBER(is_editable)
   IPC_STRUCT_TRAITS_MEMBER(writing_direction_default)
   IPC_STRUCT_TRAITS_MEMBER(writing_direction_left_to_right)
   IPC_STRUCT_TRAITS_MEMBER(writing_direction_right_to_left)
   IPC_STRUCT_TRAITS_MEMBER(edit_flags)
   IPC_STRUCT_TRAITS_MEMBER(frame_charset)
   IPC_STRUCT_TRAITS_MEMBER(referrer_policy)
   IPC_STRUCT_TRAITS_MEMBER(custom_context)
   IPC_STRUCT_TRAITS_MEMBER(custom_items)
   IPC_STRUCT_TRAITS_MEMBER(source_type)
-#if defined(OS_ANDROID)
-  IPC_STRUCT_TRAITS_MEMBER(selection_start)
-  IPC_STRUCT_TRAITS_MEMBER(selection_end)
-#endif
   IPC_STRUCT_TRAITS_MEMBER(input_field_type)
+  IPC_STRUCT_TRAITS_MEMBER(selection_rect)
 IPC_STRUCT_TRAITS_END()
 
 IPC_STRUCT_TRAITS_BEGIN(content::CustomContextMenuContext)
   IPC_STRUCT_TRAITS_MEMBER(is_pepper_menu)
   IPC_STRUCT_TRAITS_MEMBER(request_id)
   IPC_STRUCT_TRAITS_MEMBER(render_widget_id)
   IPC_STRUCT_TRAITS_MEMBER(link_followed)
 IPC_STRUCT_TRAITS_END()
 
 IPC_STRUCT_TRAITS_BEGIN(content::FrameOwnerProperties)
@@ skipping 1498 matching lines @@
                     int /* nfr_request_id */,
                     float /* distance */)
 
 IPC_MESSAGE_ROUTED0(FrameHostMsg_NavigationHandledByEmbedder)
 #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.