Index: chrome/browser/prerender/prerender_link_manager.h |
diff --git a/chrome/browser/prerender/prerender_link_manager.h b/chrome/browser/prerender/prerender_link_manager.h |
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+// 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 CHROME_BROWSER_PRERENDER_PRERENDER_LINK_MANAGER_H_ |
+#define CHROME_BROWSER_PRERENDER_PRERENDER_LINK_MANAGER_H_ |
+#pragma once |
+ |
+#include <map> |
+#include <utility> |
+ |
+#include "base/basictypes.h" |
+#include "base/gtest_prod_util.h" |
+#include "chrome/browser/profiles/profile_keyed_service.h" |
+#include "googleurl/src/gurl.h" |
+ |
+class Profile; |
+ |
+namespace content { |
+struct Referrer; |
+} |
+ |
+namespace gfx { |
+class Size; |
+} |
+ |
+namespace prerender { |
+ |
+class PrerenderManager; |
+ |
+// PrerenderLinkManager implements the API on Link elements for all documents |
+// being rendered in this chrome instance. It receives messages from the |
+// renderer indicating addition, cancelation and abandonment of link elements, |
+// and controls the PrerenderManager accordingly. |
+class PrerenderLinkManager : public ProfileKeyedService { |
+ public: |
+ explicit PrerenderLinkManager(PrerenderManager* manager); |
+ virtual ~PrerenderLinkManager(); |
+ |
+ // A <link rel=prerender ...> element has been inserted into the document. |
+ // The |prerender_id| must be unique per |child_id|, and is assigned by the |
+ // WebPrerendererClient. |
+ // Returns true if the prerender was accepted by the prerender manager, |
+ // and false if not. In either case, the |prerender_id| is usable for |
+ // future OnCancelPrerender and OnAbandonPrerender calls. |
+ bool OnAddPrerender( |
+ int child_id, |
+ int prerender_id, |
+ const GURL& url, |
+ const content::Referrer& referrer, |
+ const gfx::Size& size, |
+ int render_view_route_id); |
+ |
+ // A <link rel=prerender ...> element has been explicitly removed from a |
+ // document. |
+ void OnCancelPrerender(int child_id, int prerender_id); |
+ |
+ // A renderer launching <link rel=prerender ...> has navigated away from the |
+ // launching page, the launching renderer process has crashed, or perhaps the |
+ // renderer process was fast-closed when the last render view in it was |
+ // closed. |
+ void OnAbandonPrerender(int child_id, int prerender_id); |
+ |
+ // If a renderer channel closes (crash, fast exit, etc...), that's effectively |
+ // an abandon of any prerenders launched by that child. |
+ void OnChannelClosing(int child_id); |
+ |
+ private: |
+ friend class PrerenderBrowserTest; |
+ friend class PrerenderTest; |
+ |
+ typedef std::pair<int, int> ChildAndPrerenderIdPair; |
+ typedef std::map<ChildAndPrerenderIdPair, GURL> IdPairToUrlMap; |
+ |
+ void RemovePrerender(const IdPairToUrlMap::iterator& id_url_iter); |
+ |
+ bool IsEmpty() const; |
+ |
+ PrerenderManager* manager_; |
+ IdPairToUrlMap ids_to_url_map_; |
+ |
+ DISALLOW_COPY_AND_ASSIGN(PrerenderLinkManager); |
+}; |
+ |
+} // namespace prerender |
+ |
+#endif // CHROME_BROWSER_PRERENDER_PRERENDER_LINK_MANAGER_H_ |
+ |