Page Speed Optimization Libraries  1.7.30.3
net/instaweb/rewriter/public/critical_line_info_finder.h
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00001 /*
00002  * Copyright 2013 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  */
00016 
00021 
00022 #ifndef NET_INSTAWEB_REWRITER_PUBLIC_CRITICAL_LINE_INFO_FINDER_H_
00023 #define NET_INSTAWEB_REWRITER_PUBLIC_CRITICAL_LINE_INFO_FINDER_H_
00024 
00025 #include "net/instaweb/util/public/basictypes.h"
00026 #include "net/instaweb/util/public/property_cache.h"
00027 
00028 namespace net_instaweb {
00029 
00030 class CriticalLineInfo;
00031 class RewriteDriver;
00032 
00036 class CriticalLineInfoFinder {
00037  public:
00038   static const char kCriticalLineInfoPropertyName[];
00039 
00040   explicit CriticalLineInfoFinder(const PropertyCache::Cohort* cohort);
00041   virtual ~CriticalLineInfoFinder();
00042 
00044   const PropertyCache::Cohort* cohort() const { return cohort_; }
00045 
00047   const CriticalLineInfo* GetCriticalLine(RewriteDriver* driver);
00048 
00049  private:
00050   const PropertyCache::Cohort* cohort_;
00052   void UpdateInDriver(RewriteDriver* driver);
00053 
00054   DISALLOW_COPY_AND_ASSIGN(CriticalLineInfoFinder);
00055 };
00056 
00057 }  
00058 
00059 #endif  ///< NET_INSTAWEB_REWRITER_PUBLIC_CRITICAL_LINE_INFO_FINDER_H_
00060 
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