Plumb composition character bounds for Android 5.0

content/renderer/render_widget.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.
 
 #ifndef CONTENT_RENDERER_RENDER_WIDGET_H_
 #define CONTENT_RENDERER_RENDER_WIDGET_H_
 
 #include <deque>
 #include <map>
 
@@ skipping 274 matching lines @@
 
   // |show_ime| should be SHOW_IME_IF_NEEDED iff the update may cause the ime to
   // be displayed, e.g. after a tap on an input field on mobile.
   // |change_source| should be FROM_NON_IME when the renderer has to wait for
   // the browser to acknowledge the change before the renderer handles any more
   // IME events. This is when the text change did not originate from the IME in
   // the browser side, such as changes by JavaScript or autofill.
   void UpdateTextInputState(ShowIme show_ime, ChangeSource change_source);
 #endif
 
-#if defined(OS_MACOSX) || defined(USE_AURA)
+#if defined(OS_MACOSX) || defined(USE_AURA) || defined(OS_ANDROID)
   // Checks if the composition range or composition character bounds have been
   // changed. If they are changed, the new value will be sent to the browser
-  // process.
+  // process. This method does nothing when the browser process is not able to
+  // handle composition range and composition character bounds.
   void UpdateCompositionInfo(bool should_update_range);
 #endif
 
 #if defined(OS_ANDROID)
   void DidChangeBodyBackgroundColor(SkColor bg_color);
 #endif
 
  protected:
   // Friend RefCounted so that the dtor can be non-public. Using this class
   // without ref-counting is an error.
@@ skipping 155 matching lines @@
       scoped_refptr<IPC::SyncMessageFilter> sync_message_filter,
       bool commit_requested,
       int source_frame_number);
 
   // Override point to obtain that the current input method state and caret
   // position.
   virtual ui::TextInputType GetTextInputType();
   virtual ui::TextInputType WebKitToUiTextInputType(
       blink::WebTextInputType type);
 
-#if defined(OS_MACOSX) || defined(USE_AURA)
+#if defined(OS_MACOSX) || defined(USE_AURA) || defined(OS_ANDROID)
   // Override point to obtain that the current composition character bounds.
   // In the case of surrogate pairs, the character is treated as two characters:
   // the bounds for first character is actual one, and the bounds for second
   // character is zero width rectangle.
   virtual void GetCompositionCharacterBounds(
       std::vector<gfx::Rect>* character_bounds);
 
   // Returns the range of the text that is being composed or the selection if
   // the composition does not exist.
   virtual void GetCompositionRange(gfx::Range* range);
@@ skipping 270 matching lines @@
   ui::MenuSourceType context_menu_source_type_;
   bool has_host_context_menu_location_;
   gfx::Point host_context_menu_location_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderWidget);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_RENDER_WIDGET_H_