Allow some InputConnection methods to be called on UI thread

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 <stddef.h>
 #include <stdint.h>
 
@@ skipping 488 matching lines @@
 
 #if defined(OS_ANDROID)
   // Called when we send IME event that expects an ACK.
   void OnImeEventSentForAck(const blink::WebTextInputInfo& info);
 
   // Called by the browser process for every required IME acknowledgement.
   void OnImeEventAck();
 
   // Called by the browser process to update text input state.
   void OnRequestTextInputStateUpdate();
+
+  // Called by the browser process to begin (when |begin| is set) or end batch
+  // edit mode. Note that text input state will not be updated in this mode.
+  void OnImeBatchEdit(bool begin);
 #endif
 
   // Called by the browser process to update the cursor and composition
   // information.
   void OnRequestCompositionUpdate(bool immediate_request, bool monitor_request);
 
   // Notify the compositor about a change in viewport size. This should be
   // used only with auto resize mode WebWidgets, as normal WebWidgets should
   // go through OnResize.
   void AutoResizeCompositor();
@@ skipping 145 matching lines @@
   // Indicates whether tab-initiated fullscreen was granted.
   bool is_fullscreen_granted_;
 
   // Indicates the display mode.
   blink::WebDisplayMode display_mode_;
 
   // It is possible that one ImeEventGuard is nested inside another
   // ImeEventGuard. We keep track of the outermost one, and update it as needed.
   ImeEventGuard* ime_event_guard_;
 
+  // Whether IME is in batch edit mode, in which case we do not update text
+  // input state.
+  bool ime_in_batch_edit_;
+
   // True if we have requested this widget be closed.  No more messages will
   // be sent, except for a Close.
   bool closing_;
 
   // True if it is known that the host is in the process of being shut down.
   bool host_closing_;
 
   // Whether this RenderWidget is currently swapped out, such that the view is
   // being rendered by another process.  If all RenderWidgets in a process are
   // swapped out, the process can exit.
@@ skipping 121 matching lines @@
   // Stores edit commands associated to the next key event.
   // Will be cleared as soon as the next key event is processed.
   EditCommands edit_commands_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderWidget);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_RENDER_WIDGET_H_