Move of SdchDictionaryFetcher to net.

net/base/sdch_dictionary_fetcher.h

 // 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.
 
 // Support modularity by calling to load a new SDCH filter dictionary.
 // Note that this sort of calling can't be done in the /net directory, as it has
 // no concept of the HTTP cache (which is only visible at the browser level).
 
-#ifndef CHROME_BROWSER_NET_SDCH_DICTIONARY_FETCHER_H_
-#define CHROME_BROWSER_NET_SDCH_DICTIONARY_FETCHER_H_
+#ifndef NET_BASE_SDCH_DICTIONARY_FETCHER_H_
+#define NET_BASE_SDCH_DICTIONARY_FETCHER_H_
 
 #include <queue>
 #include <set>
 #include <string>
 
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
 #include "base/threading/non_thread_safe.h"
 #include "net/base/sdch_manager.h"
 #include "net/url_request/url_fetcher_delegate.h"
 
 namespace net {
+
 class URLFetcher;
 class URLRequestContextGetter;
-}  // namespace net
 
-class SdchDictionaryFetcher
-    : public net::URLFetcherDelegate,
-      public net::SdchFetcher,
+class NET_EXPORT SdchDictionaryFetcher
+    : public URLFetcherDelegate,
+      public SdchFetcher,
       public base::NonThreadSafe {
  public:
   // Consumer must guarantee that the SdchManager pointer outlives
   // this object.  The current implementation guarantees this by
   // the SdchManager owning this object.
-  SdchDictionaryFetcher(net::SdchManager* manager,
-                        net::URLRequestContextGetter* context);
+  SdchDictionaryFetcher(SdchManager* manager,
+                        URLRequestContextGetter* context);
   virtual ~SdchDictionaryFetcher();
 
   // Implementation of SdchFetcher class.
   virtual void Schedule(const GURL& dictionary_url) OVERRIDE;
   virtual void Cancel() OVERRIDE;
 
  private:
   // Delay in ms between Schedule and actual download.
   // This leaves the URL in a queue, which is de-duped, so that there is less
   // chance we'll try to load the same URL multiple times when a pile of
   // page subresources (or tabs opened in parallel) all suggest the dictionary.
   static const int kMsDelayFromRequestTillDownload = 100;
 
   // Ensure the download after the above delay.
   void ScheduleDelayedRun();
 
   // Make sure we're processing (or waiting for) the the arrival of the next URL
   // in the  |fetch_queue_|.
   void StartFetching();
 
-  // Implementation of net::URLFetcherDelegate. Called after transmission
+  // Implementation of URLFetcherDelegate. Called after transmission
   // completes (either successfully or with failure).
-  virtual void OnURLFetchComplete(const net::URLFetcher* source) OVERRIDE;
+  virtual void OnURLFetchComplete(const URLFetcher* source) OVERRIDE;
 
-  net::SdchManager* const manager_;
+  SdchManager* const manager_;
 
   // A queue of URLs that are being used to download dictionaries.
   std::queue<GURL> fetch_queue_;
   // The currently outstanding URL fetch of a dicitonary.
   // If this is null, then there is no outstanding request.
-  scoped_ptr<net::URLFetcher> current_fetch_;
+  scoped_ptr<URLFetcher> current_fetch_;
 
   // Always spread out the dictionary fetches, so that they don't steal
   // bandwidth from the actual page load.  Create delayed tasks to spread out
   // the download.
   base::WeakPtrFactory<SdchDictionaryFetcher> weak_factory_;
   bool task_is_pending_;
 
   // Althought the SDCH spec does not preclude a server from using a single URL
   // to load several distinct dictionaries (by telling a client to load a
   // dictionary from an URL several times), current implementations seem to have
   // that 1-1 relationship (i.e., each URL points at a single dictionary, and
   // the dictionary content does not change over time, and hence is not worth
   // trying to load more than once).  In addition, some dictionaries prove
   // unloadable only after downloading them (because they are too large?  ...or
   // malformed?). As a protective element, Chromium will *only* load a
   // dictionary at most once from a given URL (so that it doesn't waste
   // bandwidth trying repeatedly).
   // The following set lists all the dictionary URLs that we've tried to load,
   // so that we won't try to load from an URL more than once.
   // TODO(jar): Try to augment the SDCH proposal to include this restiction.
   std::set<GURL> attempted_load_;
 
   // Store the system_url_request_context_getter to use it when we start
   // fetching.
-  scoped_refptr<net::URLRequestContextGetter> context_;
+  scoped_refptr<URLRequestContextGetter> context_;
 
   DISALLOW_COPY_AND_ASSIGN(SdchDictionaryFetcher);
 };
 
-#endif  // CHROME_BROWSER_NET_SDCH_DICTIONARY_FETCHER_H_
+}  // namespace net
+
+#endif  // NET_BASE_SDCH_DICTIONARY_FETCHER_H_