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..1fc55f9caf2c5006fd53132ff4c9d4e24b4370ea 100644
--- a/third_party/WebKit/public/web/WebFrameWidget.h
+++ b/third_party/WebKit/public/web/WebFrameWidget.h
@@ -81,13 +81,6 @@ 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(