Cancel prerenders that spawn post requests.

chrome/browser/prerender/prerender_manager.h

Index: chrome/browser/prerender/prerender_manager.h
diff --git a/chrome/browser/prerender/prerender_manager.h b/chrome/browser/prerender/prerender_manager.h
index 7fdec06e2131ce13f5f68cf8eaf6c9df14318815..f1f46ff28ee356de6ca0f215d9606b287c27abe8 100644
--- a/chrome/browser/prerender/prerender_manager.h
+++ b/chrome/browser/prerender/prerender_manager.h
@@ -37,13 +37,25 @@ struct hash<TabContents*> {
 
 namespace prerender {
 
-void HandlePrefetchTagOnUIThread(
+// Adds either a preload or a pending preload to the PrerenderManager.
+// Must be called on the UI thread.
+void HandlePrefetchTag(
     const base::WeakPtr<PrerenderManager>& prerender_manager,
-    const std::pair<int, int>& child_route_id_pair,
+    int render_process_id,
+    int render_view_id,
     const GURL& url,
     const GURL& referrer,
     bool make_pending);
 
+// Given a renderer process id and view id, this will destroy any preloads and
+// pending preloads than are using or originated in the given render view.
+// Must be called on the UI thread.
+void DestroyPreloadForRenderView(
+    const base::WeakPtr<PrerenderManager>& prerender_manager_weak_ptr,
+    int render_process_id,
+    int render_view_id,
+    FinalStatus final_status);
+
 // PrerenderManager is responsible for initiating and keeping prerendered
 // views of webpages. All methods must be called on the UI thread unless
 // indicated otherwise.
@@ -78,6 +90,12 @@ class PrerenderManager : public base::SupportsWeakPtr<PrerenderManager>,
                          const GURL& url,
                          const GURL& referrer);
 
+  // Destroy all preloads for the given child route id pair and assign a final
+  // status to them.
+  void DestroyPreloadForChildRouteIdPair(
+      const std::pair<int, int>& child_route_id_pair,
+      FinalStatus final_status);
+
   // For a given TabContents that wants to navigate to the URL supplied,
   // determines whether a preloaded version of the URL can be used,
   // and substitutes the prerendered RVH into the TabContents.  Returns
@@ -153,6 +171,9 @@ class PrerenderManager : public base::SupportsWeakPtr<PrerenderManager>,
   static bool MaybeGetQueryStringBasedAliasURL(const GURL& url,
                                                GURL* alias_url);
 
+  // Returns true if the method given is invalid for prerendering.
+  static bool IsValidHttpMethod(const std::string& method);
+
  protected:
   struct PendingContentsData;
 
@@ -192,6 +213,12 @@ class PrerenderManager : public base::SupportsWeakPtr<PrerenderManager>,
   // ownership of the PrerenderContents.
   PrerenderContents* FindEntry(const GURL& url);
 
+  // Returns the iterator to the PrerenderContentsData entry that is being
+  // prerendered from the given child route id pair.
+  std::list<PrerenderContentsData>::iterator
+      FindPrerenderContentsForChildRouteIdPair(
+          const std::pair<int, int>& child_route_id_pair);
+
   // Returns whether the PrerenderManager is currently within the prerender
   // window - effectively, up to 30 seconds after a prefetch tag has been
   // observed.