Remove the last references from production code to WebViewImpl.

third_party/WebKit/Source/web/WebFrameWidgetBase.cpp

 // Copyright 2016 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.
 
 #include "web/WebFrameWidgetBase.h"
 
 #include "core/dom/DocumentUserGestureToken.h"
+#include "core/exported/WebViewBase.h"
 #include "core/frame/FrameView.h"
 #include "core/frame/VisualViewport.h"
 #include "core/input/EventHandler.h"
 #include "core/page/DragActions.h"
 #include "core/page/DragController.h"
 #include "core/page/DragData.h"
 #include "core/page/DragSession.h"
 #include "core/page/Page.h"
 #include "core/page/PointerLockController.h"
 #include "platform/UserGestureIndicator.h"
 #include "public/web/WebAutofillClient.h"
 #include "public/web/WebDocument.h"
 #include "public/web/WebWidgetClient.h"
 #include "web/WebInputEventConversion.h"
 #include "web/WebLocalFrameImpl.h"
-#include "web/WebViewImpl.h"
 
 namespace blink {
 
 namespace {
 
 // Helper to get LocalFrame* from WebLocalFrame*.
 // TODO(dcheng): This should be moved into WebLocalFrame.
 LocalFrame* ToCoreFrame(WebLocalFrame* frame) {
   return ToWebLocalFrameImpl(frame)->GetFrame();
 }
@@ skipping 246 matching lines @@
 
   if (GetPage()) {
     WebMouseEvent transformed_event = TransformWebMouseEvent(
         ToWebLocalFrameImpl(LocalRoot())->GetFrameView(), mouse_event);
     GetPage()->GetPointerLockController().DispatchLockedMouseEvent(
         transformed_event, event_type);
   }
 }
 
 }  // namespace blink