Cross-process postMessage

content/browser/tab_contents/navigation_controller.h

Index: content/browser/tab_contents/navigation_controller.h
diff --git a/content/browser/tab_contents/navigation_controller.h b/content/browser/tab_contents/navigation_controller.h
index e9bc0d3e6e616b228acb253437d86eff0e1e0fb1..3d3fb4f55b1efc91469bc1265fd18d1930fe347e 100644
--- a/content/browser/tab_contents/navigation_controller.h
+++ b/content/browser/tab_contents/navigation_controller.h
@@ -178,14 +178,18 @@ class CONTENT_EXPORT NavigationController {
   void LoadURL(const GURL& url,
                const GURL& referrer,
                content::PageTransition type,
-               const std::string& extra_headers);
+               const std::string& extra_headers,
+               // TODO(supersat): If this is a user-initiated load,
+               // will this ever be set?

[Charlie Reis, 2011/12/01 23:13:02]

Reasonable question.  If you hit shift or control + enter on a URL in the
omnibox, for example, it will create a new window/tab.  We'll keep that in the
same SiteInstance if it's part of the same site, but we may change that. 
Regardless, window.opener is not set and we wouldn't be able to script the new
window.

I'm thinking a browser-initiated navigation should not set this.

[supersat, 2011/12/09 23:08:20]

Done.

+               int64 opener_browsing_instance_frame_id = -1);
 
   // Same as LoadURL, but for renderer-initiated navigations.  This state is
   // important for tracking whether to display pending URLs.
   void LoadURLFromRenderer(const GURL& url,
                            const GURL& referrer,
                            content::PageTransition type,
-                           const std::string& extra_headers);
+                           const std::string& extra_headers,
+                           int64 opener_browsing_instance_frame_id = -1);
 
   // Loads the current page if this NavigationController was restored from
   // history and the current page has not loaded yet.
@@ -340,7 +344,8 @@ class CONTENT_EXPORT NavigationController {
       content::PageTransition transition,
       bool is_renderer_initiated,
       const std::string& extra_headers,
-      content::BrowserContext* browser_context);
+      content::BrowserContext* browser_context,
+      int64 opener_browsing_instance_frame_id = -1);
 
  private:
   class RestoreHelper;