Remove 'global' user-data in favor of 'process' user-data.

base/debug/activity_analyzer.h

 // Copyright 2016 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.
 
 #ifndef BASE_DEBUG_ACTIVITY_ANALYZER_H_
 #define BASE_DEBUG_ACTIVITY_ANALYZER_H_
 
 #include <map>
 #include <memory>
 #include <set>
@@ skipping 158 matching lines @@
 
   // Extract user data based on a reference and its identifier.
   ActivityUserData::Snapshot GetUserDataSnapshot(int64_t pid,
                                                  uint32_t ref,
                                                  uint32_t id);
 
   // Extract the data for a specific process. An empty snapshot will be
   // returned if the process is not known.
   const ActivityUserData::Snapshot& GetProcessDataSnapshot(int64_t pid);
 
-  // Extract the global data.
-  const ActivityUserData::Snapshot& GetGlobalDataSnapshot();
-
   // Gets all log messages stored within.
   std::vector<std::string> GetLogMessages();
 
   // Gets all the known modules.
   std::vector<GlobalActivityTracker::ModuleInfo> GetModules();
 
   // Gets the corresponding "program location" for a given "program counter".
   // This will return {0,0} if no mapping could be found.
   ProgramLocation GetProgramLocationFromAddress(uint64_t address);
 
@@ skipping 37 matching lines @@
   std::vector<int64_t> process_ids_;
 
   // A map, keyed by ThreadKey, of all valid activity analyzers.
   AnalyzerMap analyzers_;
 
   // The iterator within the analyzers_ map for returning analyzers through
   // first/next iteration.
   AnalyzerMap::iterator analyzers_iterator_;
   int64_t analyzers_iterator_pid_;
 
-  // Snapshot of the global data.
-  ActivityUserData::Snapshot global_data_snapshot_;
-
   DISALLOW_COPY_AND_ASSIGN(GlobalActivityAnalyzer);
 };
 
 }  // namespace debug
 }  // namespace base
 
 #endif  // BASE_DEBUG_ACTIVITY_ANALYZER_H_