Introduce WebInputMethodController to blink

third_party/WebKit/Source/web/WebViewImpl.h

 /*
  * Copyright (C) 2010 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 67 matching lines @@
 class InspectorOverlay;
 class LinkHighlightImpl;
 class PageOverlay;
 class PageScaleConstraintsSet;
 class PaintLayerCompositor;
 class TopControls;
 class UserGestureToken;
 class WebActiveGestureAnimation;
 class WebDevToolsAgentImpl;
 class WebElement;
+class WebInputMethodControllerImpl;
 class WebLayerTreeView;
 class WebLocalFrame;
 class WebLocalFrameImpl;
 class WebImage;
 class CompositorMutatorImpl;
 class WebPagePopupImpl;
 class WebPlugin;
 class WebRemoteFrame;
 class WebSelection;
 class WebSettingsImpl;
@@ skipping 413 matching lines @@
     // Use in Slimming Paint v2 to update the layer tree for the content.
     PaintArtifactCompositor& getPaintArtifactCompositor() { return m_paintArtifactCompositor; }
 
     bool isTransparent() const;
     void setIsTransparent(bool value);
 
     double lastFrameTimeMonotonic() const { return m_lastFrameTimeMonotonic; }
 
     ChromeClientImpl& chromeClient() const { return *m_chromeClientImpl.get(); }
 
+    // Returns the currently active WebInputMethodController which the one
+    // corresponding to the focused frame. It will return nullptr if there are
+    // none or |m_imeAcceptEvents| is false.
+    WebInputMethodControllerImpl* getActiveWebInputMethodController() const;
+
 private:
     InspectorOverlay* inspectorOverlay();
 
     void setPageScaleFactorAndLocation(float, const FloatPoint&);
     void propagateZoomFactorToLocalFrameRoots(Frame*, float);
 
     void scrollAndRescaleViewports(float scaleFactor, const IntPoint& mainFrameOrigin, const FloatPoint& visualViewportOrigin);
 
     float maximumLegiblePageScale() const;
     void refreshPageScaleFactorAfterLayout();
@@ skipping 245 matching lines @@
     Persistent<ResizeViewportAnchor> m_resizeViewportAnchor;
 };
 
 // We have no ways to check if the specified WebView is an instance of
 // WebViewImpl because WebViewImpl is the only implementation of WebView.
 DEFINE_TYPE_CASTS(WebViewImpl, WebView, webView, true, true);
 
 } // namespace blink
 
 #endif