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

content/browser/web_contents/navigation_controller_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_CONTROLLER_IMPL_H_
 #define CONTENT_BROWSER_WEB_CONTENTS_NAVIGATION_CONTROLLER_IMPL_H_
 #pragma once
 
 #include "build/build_config.h"
 #include "base/compiler_specific.h"
@@ skipping 45 matching lines @@
   virtual int GetPendingEntryIndex() const OVERRIDE;
   virtual content::NavigationEntry* GetTransientEntry() const OVERRIDE;
   virtual void LoadURL(const GURL& url,
                        const content::Referrer& referrer,
                        content::PageTransition type,
                        const std::string& extra_headers) OVERRIDE;
   virtual void LoadURLFromRenderer(const GURL& url,
                                    const content::Referrer& referrer,
                                    content::PageTransition type,
                                    const std::string& extra_headers) OVERRIDE;
+  virtual void LoadDataWithBaseURL(const GURL& data_url,

[Charlie Reis, 2012/06/15 23:10:02]

This seems to conflict with the LoadURL vs LoadURLFromRenderer distinction,
which take in the same parameters but differ in whether they show pending
navigations in the omnibox (to prevent URL spoofs).

If it's ever possible for a renderer to send this type of navigation request to
the browser (via RenderViewImpl::decidePolicyForNavigation and OpenURL), then
this approach won't work, and you'll need to somehow pass the new parameters
into both LoadURL and LoadURLFromRenderer.

Do you know that this can only be used for browser-initiated navigations?

[mnaganov (inactive), 2012/06/18 10:39:09]

Yes, for sure. This way of page loading can be only initiated from the browser
side. Clicks in the page loaded via this method are handled in an usual way --
they don't inherit base or history urls specified here.

+                                   const content::Referrer& referrer,
+                                   const GURL& base_url,
+                                   const GURL& history_url,
+                                   bool is_overriding_user_agent) OVERRIDE;
   virtual void TransferURL(
       const GURL& url,
       const content::Referrer& referrer,
       content::PageTransition transition,
       const std::string& extra_headers,
       const content::GlobalRequestID& transferred_global_request_id,
       bool is_renderer_initiated) OVERRIDE;
   virtual void LoadIfNecessary() OVERRIDE;
   virtual bool CanGoBack() const OVERRIDE;
   virtual bool CanGoForward() const OVERRIDE;
@@ skipping 245 matching lines @@
   static size_t max_entry_count_for_testing_;
 
   // If a repost is pending, its type (RELOAD or RELOAD_IGNORING_CACHE),
   // NO_RELOAD otherwise.
   ReloadType pending_reload_;
 
   DISALLOW_COPY_AND_ASSIGN(NavigationControllerImpl);
 };
 
 #endif  // CONTENT_BROWSER_WEB_CONTENTS_NAVIGATION_CONTROLLER_IMPL_H_