Switch the inheritance of WebViewClient from WebWidgetClient to protected.

third_party/WebKit/Source/web/tests/VisualViewportTest.cpp

 // Copyright 2014 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 "core/frame/VisualViewport.h"
 
 #include "core/dom/Document.h"
 #include "core/frame/FrameHost.h"
 #include "core/frame/FrameView.h"
 #include "core/frame/LocalFrame.h"
@@ skipping 101 matching lines @@
     }
 
     void overrideSettings(WebSettings *settings) override
     {
     }
 
     void initializeWithDesktopSettings(void (*overrideSettingsFunc)(WebSettings*) = 0)
     {
         if (!overrideSettingsFunc)
             overrideSettingsFunc = &configureSettings;
-        m_helper.initialize(true, 0, &m_mockWebViewClient, overrideSettingsFunc);
+        m_helper.initialize(true, nullptr, &m_mockWebViewClient, nullptr, overrideSettingsFunc);
         webViewImpl()->setDefaultPageScaleLimits(1, 4);
     }
 
     void initializeWithAndroidSettings(void (*overrideSettingsFunc)(WebSettings*) = 0)
     {
         if (!overrideSettingsFunc)
             overrideSettingsFunc = &configureAndroidSettings;
-        m_helper.initialize(true, 0, &m_mockWebViewClient, overrideSettingsFunc);
+        m_helper.initialize(true, nullptr, &m_mockWebViewClient, nullptr, overrideSettingsFunc);
         webViewImpl()->setDefaultPageScaleLimits(0.25f, 5);
     }
 
     ~VisualViewportTest() override
     {
         Platform::current()->getURLLoaderMockFactory()->unregisterAllURLs();
         WebCache::clear();
     }
 
     void navigateTo(const std::string& url)
@@ skipping 1715 matching lines @@
     webViewImpl()->handleInputEvent(pinchUpdate);
 
     VisualViewport& visualViewport = webViewImpl()->page()->frameHost().visualViewport();
     FrameView& frameView = *webViewImpl()->mainFrameImpl()->frameView();
 
     EXPECT_FLOAT_POINT_EQ(FloatPoint(50, 50), visualViewport.location());
     EXPECT_FLOAT_POINT_EQ(FloatPoint(0, 0), frameView.scrollPositionDouble());
 }
 
 } // namespace