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

content/browser/web_contents/navigation_entry_impl.h

 // Copyright (c) 2012 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.
 
 #ifndef CONTENT_BROWSER_WEB_CONTENTS_NAVIGATION_ENTRY_IMPL_H_
 #define CONTENT_BROWSER_WEB_CONTENTS_NAVIGATION_ENTRY_IMPL_H_
 #pragma once
 
 #include "base/basictypes.h"
 #include "base/memory/ref_counted.h"
@@ skipping 18 matching lines @@
                       const string16& title,
                       PageTransition transition_type,
                       bool is_renderer_initiated);
   virtual ~NavigationEntryImpl();
 
   // NavigationEntry implementation:
   virtual int GetUniqueID() const OVERRIDE;
   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;
   virtual const GURL& GetVirtualURL() const OVERRIDE;
   virtual void SetTitle(const string16& title) OVERRIDE;
   virtual const string16& GetTitle() const OVERRIDE;
   virtual void SetContentState(const std::string& state) OVERRIDE;
   virtual const std::string& GetContentState() const OVERRIDE;
   virtual void SetPageID(int page_id) OVERRIDE;
   virtual int32 GetPageID() const OVERRIDE;
@@ skipping 131 matching lines @@
   GURL user_typed_url_;
   bool has_post_data_;
   int64 post_id_;
   RestoreType restore_type_;
   GURL original_request_url_;
   bool is_overriding_user_agent_;
 
   // 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.
   bool is_renderer_initiated_;
 
   // This is a cached version of the result of GetTitleForDisplay. It prevents
   // us from having to do URL formatting on the URL every time the title is
   // displayed. When the URL, virtual URL, or title is set, this should be
   // cleared to force a refresh.
   mutable string16 cached_display_title_;
@@ skipping 13 matching lines @@
   // instance, instead of a new navigation. This value should not be persisted
   // and is not needed after the entry commits.
   bool is_cross_site_reload_;
 
   // Copy and assignment is explicitly allowed for this class.
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_WEB_CONTENTS_NAVIGATION_ENTRY_IMPL_H_