Mandoline: fix the crash when a remote subframe tries to access session storage.

components/html_viewer/html_widget.h

Index: components/html_viewer/html_widget.h
diff --git a/components/html_viewer/html_widget.h b/components/html_viewer/html_widget.h
index 37074ce1c7ab25a65d848ade5dbf12bd6da260e1..2ad21141746a3f37ba00eb817f607f030e2fecdd 100644
--- a/components/html_viewer/html_widget.h
+++ b/components/html_viewer/html_widget.h
@@ -38,12 +38,16 @@ class HTMLWidget {
 };
 
 // Used for the root frame when the root frame is remote.
-class HTMLWidgetRootRemote : public HTMLWidget {
+class HTMLWidgetRootRemote : public HTMLWidget, public blink::WebViewClient {
  public:
   HTMLWidgetRootRemote();
   ~HTMLWidgetRootRemote() override;
 
  private:
+  // WebViewClient methods:
+  virtual blink::WebStorageNamespace* createSessionStorageNamespace();
+  virtual bool HTMLWidgetRootRemote::allowsBrokenNullLayerTreeView() const;

[sky, 2015/09/23 23:56:24]

remove HTMLWidgetRootRemote::

[yzshen1, 2015/09/24 03:55:11]

oops. Done.

+
   // HTMLWidget:
   blink::WebWidget* GetWidget() override;
   void OnViewBoundsChanged(mus::View* view) override;