Support POST in browser navaigation.

content/public/browser/page_navigator.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.
 
 // PageNavigator defines an interface that can be used to express the user's
 // intention to navigate to a particular URL.  The implementing class should
 // perform the navigation.
 
 #ifndef CONTENT_PUBLIC_BROWSER_PAGE_NAVIGATOR_H_
 #define CONTENT_PUBLIC_BROWSER_PAGE_NAVIGATOR_H_
@@ skipping 54 matching lines @@
   GlobalRequestID transferred_global_request_id;
 
   // Indicates whether this navigation should replace the current
   // navigation entry.
   bool should_replace_current_entry;
 
   // Indicates whether this navigation was triggered while processing a user
   // gesture if the navigation was initiated by the renderer.
   bool user_gesture;
 
+  // Indicates whether this navigation will be sent using POST.

[Charlie Reis, 2013/08/02 16:36:41]

Again, please make it clear that this only supports basic POST use cases.

[Johnny(Jianning) Ding, 2013/08/02 23:22:55]

Done.

+  bool uses_post;
+
+  // The post data when the navigation uses POST.
+  // Checking empty status of |post_data| should be enough to indicates whether
+  // opening a URL uses POST if sending POST without data is disallowed.
+  std::string post_data;

[joth, 2013/08/01 21:16:50]

take a look at LoadURLParams in content/public/browser/navigation_controller.h

over there we use

scoped_refptr<base::RefCountedMemory> browser_initiated_post_data;

which has benefit of avoiding copies, and you can use a null pointer to indicate
no data.

(question to content API owners: do we really need both LoadURLParams and
OpenURLParams ?)

[Charlie Reis, 2013/08/02 16:36:41]

I agree, this seems like it would be better.
Joth, maybe you can start a separate thread for that?  I'm not sure about the
answer.

[Johnny(Jianning) Ding, 2013/08/02 23:22:55]

Done.

+
  private:
   OpenURLParams();
 };
 
 class PageNavigator {
  public:
   virtual ~PageNavigator() {}
 
   // Opens a URL with the given disposition.  The transition specifies how this
   // navigation should be recorded in the history system (for example, typed).
   // Returns the WebContents the URL is opened in, or NULL if the URL wasn't
   // opened immediately.
   virtual WebContents* OpenURL(const OpenURLParams& params) = 0;
 };
 
 }
 
 #endif  // CONTENT_PUBLIC_BROWSER_PAGE_NAVIGATOR_H_