Add an ability to call WebKit's WebFrame::loadData via NavigationController.

content/browser/web_contents/navigation_entry_impl.h

Index: content/browser/web_contents/navigation_entry_impl.h
diff --git a/content/browser/web_contents/navigation_entry_impl.h b/content/browser/web_contents/navigation_entry_impl.h
index 88d89929b0c9d5db58ae93333f789649e215c6f8..89725aaaa8373c1ee32f9c90bca6e17221a6fe5b 100644
--- a/content/browser/web_contents/navigation_entry_impl.h
+++ b/content/browser/web_contents/navigation_entry_impl.h
@@ -36,6 +36,8 @@ class CONTENT_EXPORT NavigationEntryImpl
   virtual PageType GetPageType() const OVERRIDE;
   virtual void SetURL(const GURL& url) OVERRIDE;
   virtual const GURL& GetURL() const OVERRIDE;
+  virtual void SetBaseURLForDataURL(const GURL& url) OVERRIDE;
+  virtual const GURL& GetBaseURLForDataURL() const OVERRIDE;
   virtual void SetReferrer(const Referrer& referrer) OVERRIDE;
   virtual const Referrer& GetReferrer() const OVERRIDE;
   virtual void SetVirtualURL(const GURL& url) OVERRIDE;
@@ -187,6 +189,9 @@ class CONTENT_EXPORT NavigationEntryImpl
   // This member is not persisted with sesssion restore.
   std::string extra_headers_;
 
+  // Used for specifying base URL for pages loaded via data URLs. Not persisted.

[Charlie Reis, 2012/07/10 20:54:19]

Sanity check: why is this safe to not persist?  Is it because Android WebViews
never use session or tab restore?  Will that always be true?

[mnaganov (inactive), 2012/07/23 14:02:30]

WebView currently uses the single-process model (for compatibility), so a crash
in renderer will kick out the whole application that uses WebView. And Android
WebView doesn't offer renderer state saving, so I think this should be fine.

+  GURL base_url_for_data_url_;
+
   // Whether the entry, while loading, was created for a renderer-initiated
   // navigation.  This dictates whether the URL should be displayed before the
   // navigation commits.  It is cleared on commit and not persisted.