Introduce WebInputMethodController to blink

third_party/WebKit/Source/web/WebViewFrameWidget.h

Index: third_party/WebKit/Source/web/WebViewFrameWidget.h
diff --git a/third_party/WebKit/Source/web/WebViewFrameWidget.h b/third_party/WebKit/Source/web/WebViewFrameWidget.h
index cf4cad07654c10a2de123ea9f09917b1b2dc6dc9..fcf7e4f6792f55de95551d2425c65baa7ba54d5c 100644
--- a/third_party/WebKit/Source/web/WebViewFrameWidget.h
+++ b/third_party/WebKit/Source/web/WebViewFrameWidget.h
@@ -7,6 +7,7 @@
 
 #include "platform/heap/Handle.h"
 #include "web/WebFrameWidgetBase.h"
+#include "web/WebInputMethodControllerImpl.h"
 #include "web/WebLocalFrameImpl.h"
 #include "wtf/Noncopyable.h"
 #include "wtf/RefPtr.h"
@@ -64,13 +65,6 @@ class WebViewFrameWidget : public WebFrameWidgetBase {
                            float browserControlsShownRatioDelta) override;
   void mouseCaptureLost() override;
   void setFocus(bool) override;
-  bool setComposition(const WebString& text,
-                      const WebVector<WebCompositionUnderline>& underlines,
-                      int selectionStart,
-                      int selectionEnd) override;
-  bool commitText(const WebString& text, int relativeCaretPosition) override;
-  bool finishComposingText(
-      ConfirmCompositionBehavior selectionBehavior) override;
   WebRange compositionRange() override;
   WebTextInputInfo textInputInfo() override;
   WebTextInputType textInputType() override;
@@ -99,6 +93,8 @@ class WebViewFrameWidget : public WebFrameWidgetBase {
   void setIsTransparent(bool) override;
   void setBaseBackgroundColor(WebColor) override;
   WebLocalFrameImpl* localRoot() override;
+  WebInputMethodControllerImpl* getActiveWebInputMethodController()
+      const override;
 
   // WebFrameWidgetBase overrides:
   bool forSubframe() const override { return false; }