Update from https://crrev.com/316786

base/test/trace_event_analyzer.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.
 
 // Use trace_analyzer::Query and trace_analyzer::TraceAnalyzer to search for
 // specific trace events that were generated by the trace_event.h API.
 //
 // Basic procedure:
-// - Get trace events JSON string from base::debug::TraceLog.
+// - Get trace events JSON string from base::trace_event::TraceLog.
 // - Create TraceAnalyzer with JSON string.
 // - Call TraceAnalyzer::AssociateBeginEndEvents (optional).
 // - Call TraceAnalyzer::AssociateEvents (zero or more times).
 // - Call TraceAnalyzer::FindEvents with queries to find specific events.
 //
 // A Query is a boolean expression tree that evaluates to true or false for a
 // given trace event. Queries can be combined into a tree using boolean,
 // arithmetic and comparison operators that refer to data of an individual trace
 // event.
 //
@@ skipping 62 matching lines @@
 #include "base/trace_event/trace_event.h"
 
 namespace base {
 class Value;
 }
 
 namespace trace_analyzer {
 class QueryNode;
 
 // trace_analyzer::TraceEvent is a more convenient form of the
-// base::debug::TraceEvent class to make tracing-based tests easier to write.
+// base::trace_event::TraceEvent class to make tracing-based tests easier to
+// write.
 struct TraceEvent {
   // ProcessThreadID contains a Process ID and Thread ID.
   struct ProcessThreadID {
     ProcessThreadID() : process_id(0), thread_id(0) {}
     ProcessThreadID(int process_id, int thread_id)
         : process_id(process_id), thread_id(thread_id) {}
     bool operator< (const ProcessThreadID& rhs) const {
       if (process_id != rhs.process_id)
         return process_id < rhs.process_id;
       return thread_id < rhs.thread_id;
@@ skipping 593 matching lines @@
 
 // Count all matches.
 static inline size_t CountMatches(const TraceEventVector& events,
                                   const Query& query) {
   return CountMatches(events, query, 0u, events.size());
 }
 
 }  // namespace trace_analyzer
 
 #endif  // BASE_TEST_TRACE_EVENT_ANALYZER_H_