Page Speed Optimization Libraries  1.2.24.1
net/instaweb/rewriter/public/beacon_critical_images_finder.h
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00001 /*
00002  * Copyright 2012 Google Inc.
00003  *
00004  * Licensed under the Apache License, Version 2.0 (the "License");
00005  * you may not use this file except in compliance with the License.
00006  * You may obtain a copy of the License at
00007  *
00008  *      http:///www.apache.org/licenses/LICENSE-2.0
00009  *
00010  * Unless required by applicable law or agreed to in writing, software
00011  * distributed under the License is distributed on an "AS IS" BASIS,
00012  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
00013  * See the License for the specific language governing permissions and
00014  * limitations under the License.
00015  */
00017 
00018 #ifndef NET_INSTAWEB_REWRITER_PUBLIC_BEACON_CRITICAL_IMAGES_FINDER_H_
00019 #define NET_INSTAWEB_REWRITER_PUBLIC_BEACON_CRITICAL_IMAGES_FINDER_H_
00020 
00021 #include "net/instaweb/rewriter/public/critical_images_finder.h"
00022 #include "net/instaweb/util/public/string_util.h"
00023 
00024 namespace net_instaweb {
00025 
00026 class RewriteDriver;
00027 class Statistics;
00028 
00032 class BeaconCriticalImagesFinder : public CriticalImagesFinder {
00033  public:
00034   static const char kBeaconCohort[];
00035 
00036   explicit BeaconCriticalImagesFinder(Statistics* stats);
00037   virtual ~BeaconCriticalImagesFinder();
00038 
00039   virtual bool IsMeaningful() const {
00042     return false;
00043   }
00044 
00045   virtual void ComputeCriticalImages(StringPiece url,
00046                                      RewriteDriver* driver);
00047 
00048   virtual const char* GetCriticalImagesCohort() const {
00049     return kBeaconCohort;
00050   }
00051 };
00052 
00053 }  
00054 
00055 #endif  ///< NET_INSTAWEB_REWRITER_PUBLIC_BEACON_CRITICAL_IMAGES_FINDER_H_
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