Move WebInputMethodControllerImpl to core/exported/ & break dependencies.

third_party/WebKit/Source/web/WebFrameWidgetImpl.h

 /*
  * Copyright (C) 2014 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 26 matching lines @@
 #include "platform/heap/SelfKeepAlive.h"
 #include "platform/scroll/ScrollTypes.h"
 #include "platform/wtf/Assertions.h"
 #include "platform/wtf/HashSet.h"
 #include "public/platform/WebCoalescedInputEvent.h"
 #include "public/platform/WebPoint.h"
 #include "public/platform/WebSize.h"
 #include "public/web/WebInputMethodController.h"
 #include "web/CompositorMutatorImpl.h"
 #include "web/PageWidgetDelegate.h"
-#include "web/WebInputMethodControllerImpl.h"
 
 namespace blink {
 
 class CompositorAnimationHost;
 class Frame;
 class Element;
 class LocalFrame;
 class PaintLayerCompositor;
 class UserGestureToken;
 class WebLayer;
@@ skipping 54 matching lines @@
   void SetRemoteViewportIntersection(const WebRect&) override;
 
   // WebFrameWidget implementation.
   WebLocalFrameBase* LocalRoot() const override { return local_root_; }
   void SetVisibilityState(WebPageVisibilityState) override;
   void SetBackgroundColorOverride(WebColor) override;
   void ClearBackgroundColorOverride() override;
   void SetBaseBackgroundColorOverride(WebColor) override;
   void ClearBaseBackgroundColorOverride() override;
   void SetBaseBackgroundColor(WebColor) override;
-  WebInputMethodControllerImpl* GetActiveWebInputMethodController()
-      const override;
+  WebInputMethodController* GetActiveWebInputMethodController() const override;
 
   Frame* FocusedCoreFrame() const;
 
   // Returns the currently focused Element or null if no element has focus.
   Element* FocusedElement() const;
 
   PaintLayerCompositor* Compositor() const;
 
   // WebFrameWidgetBase overrides:
   bool ForSubframe() const override { return true; }
@@ skipping 105 matching lines @@
 
 DEFINE_TYPE_CASTS(WebFrameWidgetImpl,
                   WebFrameWidgetBase,
                   widget,
                   widget->ForSubframe(),
                   widget.ForSubframe());
 
 }  // namespace blink
 
 #endif