Switch the inheritance of WebView from WebWidget to protected.

third_party/WebKit/public/web/WebView.h

Index: third_party/WebKit/public/web/WebView.h
diff --git a/third_party/WebKit/public/web/WebView.h b/third_party/WebKit/public/web/WebView.h
index dc25a387cd749060b27f5c72a40e419e5fff67f4..d25040cf7bcebc4c889663ece89737b0b2990b08 100644
--- a/third_party/WebKit/public/web/WebView.h
+++ b/third_party/WebKit/public/web/WebView.h
@@ -69,7 +69,7 @@ struct WebPluginAction;
 struct WebPoint;
 struct WebWindowFeatures;
 
-class WebView : public WebWidget {
+class WebView : protected WebWidget {
 public:
     BLINK_EXPORT static const double textSizeMultiplierRatio;
     BLINK_EXPORT static const double minTextSizeMultiplier;
@@ -80,6 +80,47 @@ public:
         InjectStyleInTopFrameOnly
     };
 
+    // WebWidget overrides.
+    using WebWidget::close;
+    using WebWidget::size;
+    using WebWidget::resize;
+    using WebWidget::resizeVisualViewport;
+    using WebWidget::didEnterFullScreen;
+    using WebWidget::didExitFullScreen;
+    using WebWidget::beginFrame;
+    using WebWidget::updateAllLifecyclePhases;
+    using WebWidget::paint;
+    using WebWidget::paintIgnoringCompositing;
+    using WebWidget::layoutAndPaintAsync;
+    using WebWidget::compositeAndReadbackAsync;
+    using WebWidget::themeChanged;
+    using WebWidget::handleInputEvent;
+    using WebWidget::setCursorVisibilityState;
+    using WebWidget::hasTouchEventHandlersAt;
+    using WebWidget::applyViewportDeltas;
+    using WebWidget::mouseCaptureLost;
+    using WebWidget::setFocus;
+    using WebWidget::setComposition;
+    using WebWidget::confirmComposition;
+    using WebWidget::compositionRange;
+    using WebWidget::textInputInfo;
+    using WebWidget::textInputType;
+    using WebWidget::selectionBounds;
+    using WebWidget::selectionTextDirection;
+    using WebWidget::isSelectionAnchorFirst;
+    using WebWidget::caretOrSelectionRange;
+    using WebWidget::setTextDirection;
+    using WebWidget::isAcceleratedCompositingActive;
+    using WebWidget::isWebView;
+    using WebWidget::isPagePopup;
+    using WebWidget::willCloseLayerTreeView;
+    using WebWidget::didAcquirePointerLock;
+    using WebWidget::didNotAcquirePointerLock;
+    using WebWidget::didLosePointerLock;
+    using WebWidget::didChangeWindowResizerRect;
+    using WebWidget::backgroundColor;
+    using WebWidget::pagePopup;
+    using WebWidget::updateTopControlsState;
 
     // Initialization ------------------------------------------------------
 
@@ -488,6 +529,10 @@ public:
     // context's ability to deal with that failure gracefully can be tested.
     virtual void forceNextDrawingBufferCreationToFail() = 0;
 
+    // TODO(lfg): Remove this once the refactor of WebView/WebWidget is
+    // completed.
+    WebWidget* widget() { return this; }
+
 protected:
     ~WebView() {}
 };