Move WebInputMethodControllerImpl to core/exported/ & break dependencies.

third_party/WebKit/Source/web/WebViewFrameWidget.h

 // Copyright 2015 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 WebViewFrameWidget_h
 #define WebViewFrameWidget_h
 
 #include "core/frame/WebFrameWidgetBase.h"
 #include "core/frame/WebLocalFrameBase.h"
 #include "platform/heap/Handle.h"
 #include "platform/wtf/Noncopyable.h"
 #include "platform/wtf/RefPtr.h"
-#include "web/WebInputMethodControllerImpl.h"
 
 namespace blink {
 
 class WebViewBase;
 class WebWidgetClient;
 
 // Shim class to help normalize the widget interfaces in the Blink public API.
 // For OOPI, subframes have WebFrameWidgets for input and rendering.
 // Unfortunately, the main frame still uses WebView's WebWidget for input and
 // rendering. This results in complex code, since there are two different
@@ skipping 61 matching lines @@
   void UpdateBrowserControlsState(WebBrowserControlsState constraints,
                                   WebBrowserControlsState current,
                                   bool animate) override;
   void SetVisibilityState(WebPageVisibilityState) override;
   void SetBackgroundColorOverride(WebColor) override;
   void ClearBackgroundColorOverride() override;
   void SetBaseBackgroundColorOverride(WebColor) override;
   void ClearBaseBackgroundColorOverride() override;
   void SetBaseBackgroundColor(WebColor) override;
   WebLocalFrameBase* LocalRoot() const override;
-  WebInputMethodControllerImpl* GetActiveWebInputMethodController()
-      const override;
+  WebInputMethodController* GetActiveWebInputMethodController() const override;
 
   // WebFrameWidgetBase overrides:
   bool ForSubframe() const override { return false; }
   void ScheduleAnimation() override;
   CompositorWorkerProxyClient* CreateCompositorWorkerProxyClient() override;
   AnimationWorkletProxyClient* CreateAnimationWorkletProxyClient() override;
   void SetRootGraphicsLayer(GraphicsLayer*) override;
   void SetRootLayer(WebLayer*) override;
   WebLayerTreeView* GetLayerTreeView() const override;
   CompositorAnimationHost* AnimationHost() const override;
   WebWidgetClient* Client() const override { return client_; }
   HitTestResult CoreHitTestResultAt(const WebPoint&) override;
 
  private:
   WebWidgetClient* client_;
   RefPtr<WebViewBase> web_view_;
   Persistent<WebLocalFrameBase> main_frame_;
 };
 
 }  // namespace blink
 
 #endif  // WebViewFrameWidget_h