Move webCacheManager to //components.

components/web_cache/renderer/web_cache_render_process_observer.h

+// Copyright 2014 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 COMPONENTS_WEB_CACHE_RENDERER_WEB_CACHE_RENDER_PROCESS_OBSERVER_H_
+#define COMPONENTS_WEB_CACHE_RENDERER_WEB_CACHE_RENDER_PROCESS_OBSERVER_H_
+
+#include "base/compiler_specific.h"
+#include "base/macros.h"
+#include "content/public/renderer/render_process_observer.h"
+
+namespace web_cache {
+
+// This class filters the incomming cache related control messages.

[James Cook, 2014/09/05 19:47:58]

nit: "incomming" -> "incoming"

[Xi Han, 2014/09/05 21:01:42]

Done.

+class WebCacheRenderProcessObserver : public content::RenderProcessObserver {
+ public:
+  WebCacheRenderProcessObserver();
+  virtual ~WebCacheRenderProcessObserver();
+
+  // Needs to be called by RenderViews in case of navigations to execute
+  // any 'clear cache' commands that were delayed until the next navigation.
+  void ExecutePendingClearCache();
+
+ private:
+  // RenderProcessObserver implementation.
+  virtual bool OnControlMessageReceived(const IPC::Message& message) OVERRIDE;
+  virtual void WebKitInitialized() OVERRIDE;
+  virtual void OnRenderProcessShutdown() OVERRIDE;
+
+  // Message handlers.
+  void OnSetCacheCapacities(size_t min_dead_capacity,
+                            size_t max_dead_capacity,
+                            size_t capacity);
+  // If |on_navigation| is true, the clearing is delayed until the next
+  // navigation event.
+  void OnClearCache(bool on_navigation);
+
+  // If true, the web cache shall be cleared before the next navigation event.
+  bool clear_cache_pending_;
+  bool webkit_initialized_;
+  size_t pending_cache_min_dead_capacity_;
+  size_t pending_cache_max_dead_capacity_;
+  size_t pending_cache_capacity_;
+
+  DISALLOW_COPY_AND_ASSIGN(WebCacheRenderProcessObserver);
+};
+
+}  // namespace web_cache
+
+#endif  // COMPONENTS_WEB_CACHE_RENDERER_WEB_CACHE_RENDER_PROCESS_OBSERVER_H_
+