Route IME-related IPCs to the active/focused RenderWidget (Mac)

content/browser/renderer_host/text_input_manager.h

 // Copyright 2016 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_BROWSER_RENDERER_HOST_TEXT_INPUT_MANAGER_H__
 #define CONTENT_BROWSER_RENDERER_HOST_TEXT_INPUT_MANAGER_H__
 
 #include <unordered_map>
 #include <utility>
 
@@ skipping 143 matching lines @@
   bool IsRegistered(RenderWidgetHostViewBase* view) const;
 
   // Add and remove observers for notifications regarding updates in the
   // TextInputState. Clients must be sure to remove themselves before they go
   // away.
   // Only the tab's RWHV should observer TextInputManager. In tests, however,
   // in addition to the tab's RWHV, one or more test observers might observe
   // TextInputManager.
   void AddObserver(Observer* observer);
   void RemoveObserver(Observer* observer);
+  bool HasObserver(Observer* observer) const;
 
   RenderWidgetHostViewBase* active_view_for_testing() { return active_view_; }
   size_t GetRegisteredViewsCountForTesting();
   ui::TextInputType GetTextInputTypeForViewForTesting(
       RenderWidgetHostViewBase* view);
 
  private:
   // Text selection bounds.
   struct SelectionRegion {
     SelectionRegion();
@@ skipping 36 matching lines @@
   ViewMap<CompositionRangeInfo> composition_range_info_map_;
   ViewMap<TextSelection> text_selection_map_;
 
   base::ObserverList<Observer> observer_list_;
 
   DISALLOW_COPY_AND_ASSIGN(TextInputManager);
 };
 }
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_TEXT_INPUT_MANAGER_H__