Componentize renderer side of DNS prefetching.

components/dns_prefetch/renderer/renderer_net_predictor.h

 // Copyright (c) 2011 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.
 
 // A RendererNetPredictor instance is maintained for each RenderThread.
 // URL strings are typically added to the embedded queue during rendering.
 // The first addition to the queue (transitioning from empty to having
 // some names) causes a processing task to be added to the Renderer Thread.
 // The processing task gathers all buffered names, and send them via IPC
 // to the browser, so that DNS lookups can be performed before the user attempts
 // to traverse a link.
 // This class removed some duplicates, and discards numeric IP addresss
 // (which wouldn't looked up in DNS anyway).
 // To limit the time during the processing task (and avoid stalling the Render
 // thread), several limits are placed on how much of the queue to process.
 // If the processing task is not able to completely empty the queue, it
 // schedules a future continuation of the task, and keeps the map of already
 // sent names.  If the entire queue is processed, then the list of "sent names"
 // is cleared so that future gatherings might again pass along the same names.
 
-#ifndef CHROME_RENDERER_NET_RENDERER_NET_PREDICTOR_H_
-#define CHROME_RENDERER_NET_RENDERER_NET_PREDICTOR_H_
+#ifndef COMPONENTS_DNS_PREFETCH_RENDERER_RENDERER_NET_PREDICTOR_H_
+#define COMPONENTS_DNS_PREFETCH_RENDERER_RENDERER_NET_PREDICTOR_H_
 
 #include <map>
 #include <string>
 
 #include "base/basictypes.h"
 #include "base/memory/weak_ptr.h"
-#include "chrome/renderer/net/predictor_queue.h"
+#include "components/dns_prefetch/renderer/predictor_queue.h"
+
+namespace dns_prefetch {
 
 class RendererNetPredictor {
  public:
   RendererNetPredictor();
   ~RendererNetPredictor();
 
   // Push a name into the queue to be resolved.
   void Resolve(const char* name, size_t length);
 
   // SubmitHosts processes the buffered names, and submits them for DNS
@@ skipping 53 matching lines @@
   // We have some metrics to examine performance.  We might use
   // these metrics to modify buffer counts etc. some day.
   int buffer_full_discard_count_;
   int numeric_ip_discard_count_;
 
   base::WeakPtrFactory<RendererNetPredictor> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(RendererNetPredictor);
 };  // class RendererNetPredictor
 
-#endif  // CHROME_RENDERER_NET_RENDERER_NET_PREDICTOR_H_
+}  // namespace dns_prefetch
+
+#endif  // COMPONENTS_DNS_PREFETCH_RENDERER_RENDERER_NET_PREDICTOR_H_