Remove the CHECK in RenderWidget::GetInputMethodController

third_party/WebKit/public/web/WebFrameWidget.h

Index: third_party/WebKit/public/web/WebFrameWidget.h
diff --git a/third_party/WebKit/public/web/WebFrameWidget.h b/third_party/WebKit/public/web/WebFrameWidget.h
index 4dd05097484d2ef191f66aabf2e5de29a0cea8c4..b1ab7cc92a7654c9b028149f210f76b0b1e1d366 100644
--- a/third_party/WebKit/public/web/WebFrameWidget.h
+++ b/third_party/WebKit/public/web/WebFrameWidget.h
@@ -40,7 +40,6 @@ namespace blink {
 
 class WebDragData;
 class WebLocalFrame;
-class WebInputMethodController;
 class WebView;
 class WebWidgetClient;
 
@@ -81,13 +80,6 @@ class WebFrameWidget : public WebWidget {
   // WebWidget implementation.
   bool isWebFrameWidget() const final { return true; }
 
-  // Current instance of the active WebInputMethodController, that is, the
-  // WebInputMethodController corresponding to (and owned by) the focused
-  // WebLocalFrameImpl. It might return nullptr when there are no focused
-  // frames or possibly when the WebFrameWidget does not accept IME events.
-  virtual WebInputMethodController* getActiveWebInputMethodController()
-      const = 0;
-
   // Callback methods when a drag-and-drop operation is trying to drop something
   // on the WebFrameWidget.
   virtual WebDragOperation dragTargetDragEnter(