For prerendering, keep track of all the intermediate redirects, and hook into...

chrome/browser/prerender/prerender_contents.cc

Index: chrome/browser/prerender/prerender_contents.cc
===================================================================
--- chrome/browser/prerender/prerender_contents.cc	(revision 71174)
+++ chrome/browser/prerender/prerender_contents.cc	(working copy)
@@ -16,6 +16,7 @@
 #include "chrome/common/notification_service.h"
 #include "chrome/common/url_constants.h"
 #include "chrome/common/view_types.h"
+#include "chrome/common/render_messages.h"
 #include "chrome/common/render_messages_params.h"
 #include "gfx/rect.h"
 
@@ -49,6 +50,7 @@
                  Source<Profile>(profile_));
   render_view_host_->CreateRenderView(string16());
   render_view_host_->NavigateToURL(prerender_url_);
+  AddMatchingUrl(prerender_url_);
 }
 
 PrerenderContents::~PrerenderContents() {
@@ -87,6 +89,8 @@
   navigate_params_.reset(p);
 
   url_ = params.url;
+
+  AddMatchingUrl(url_);
 }
 
 void PrerenderContents::UpdateTitle(RenderViewHost* render_view_host,
@@ -215,3 +219,45 @@
 void PrerenderContents::ShowCreatedFullscreenWidget(int route_id) {
   NOTIMPLEMENTED();
 }
+
+bool PrerenderContents::OnMessageReceived(const IPC::Message& message) {
+  bool handled = true;
+  bool message_is_ok = true;
+  IPC_BEGIN_MESSAGE_MAP_EX(PrerenderContents, message, message_is_ok)
+    IPC_MESSAGE_HANDLER(ViewHostMsg_DidStartProvisionalLoadForFrame,
+                        OnDidStartProvisionalLoadForFrame)
+    IPC_MESSAGE_HANDLER(ViewHostMsg_DidRedirectProvisionalLoad,
+                        OnDidRedirectProvisionalLoad)
+    IPC_MESSAGE_UNHANDLED(handled = false)
+  IPC_END_MESSAGE_MAP_EX()
+
+  return handled;
+}
+
+void PrerenderContents::OnDidStartProvisionalLoadForFrame(int64 frame_id,
+                                                          bool is_main_frame,
+                                                          const GURL& url) {
+  if (is_main_frame)
+    AddMatchingUrl(url);
+}
+
+void PrerenderContents::OnDidRedirectProvisionalLoad(int32 page_id,
+                                                     const GURL& source_url,
+                                                     const GURL& target_url) {
+  AddMatchingUrl(target_url);
+}
+
+void PrerenderContents::AddMatchingUrl(const GURL& url) {
+  printf("\n\n*** new matching URL: %s\n\n", url.spec().c_str());

[cbentzel, 2011/01/12 18:04:14]

Remove printf

[tburkard, 2011/01/12 21:32:10]

Done.

+  matching_urls_.push_back(url);
+}
+
+bool PrerenderContents::MatchesUrl(const GURL& url) {
+  for (std::vector<GURL>::iterator it = matching_urls_.begin();

[cbentzel, 2011/01/12 18:04:14]

Just use std::find instead of writing out the loop?

[tburkard, 2011/01/12 21:32:10]

had a more complex check in there at first.

+       it != matching_urls_.end();
+       ++it) {
+    if (*it == url)
+      return true;
+  }
+  return false;
+}