Histograms - Support histograms for Plugins, GPU

chrome/common/chrome_constants.cc

 // 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.
 
 #include "chrome/common/chrome_constants.h"
 
 #include "base/file_path.h"
 
 #define FPL FILE_PATH_LITERAL
 
@@ skipping 170 matching lines @@
 // knowing it.  Enable in debug builds.  Playback mode is allowed always,
 // because it is useful for testing and not hazardous by itself.
 #ifndef NDEBUG
 // const bool kRecordModeEnabled = true;
 #else
 // const bool kRecordModeEnabled = false;
 #endif
 
 const bool kRecordModeEnabled = true;
 
-const int kHistogramSynchronizerReservedSequenceNumber = 0;
-
 const char* const kUnknownLanguageCode = "und";
 
 const int kJavascriptMessageExpectedDelay = 1000;
 
 const bool kEnableTouchIcon = false;
 
 const float kMaxShareOfExtensionProcesses = 0.30f;
 
 #if defined(OS_LINUX)
 extern const int kLowestRendererOomScore = 300;
 extern const int kHighestRendererOomScore = 1000;
 #endif
 
 #if defined(OS_WIN)
 // This is used by the PreRead experiment.
 const char kPreReadEnvironmentVariable[] = "CHROME_PRE_READ_EXPERIMENT";
 const wchar_t kMetroChromeUserDataSubDir[] = L"Metro";
 const wchar_t kMetroNavigationAndSearchMessage[] =
     L"CHROME_METRO_NAV_SEARCH_REQUEST";
 const wchar_t kMetroGetCurrentTabInfoMessage[] =
     L"CHROME_METRO_GET_CURRENT_TAB_INFO";
 #endif
 
 }  // namespace chrome
 
 #undef FPL