Ingnore unsupported arguments in TraceEventAnalyzer.

base/test/trace_event_analyzer.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 "base/test/trace_event_analyzer.h"
 
 #include <algorithm>
 #include <math.h>
 #include <set>
 
@@ skipping 76 matching lines @@
     double double_num = 0.0;
     if (it.value().GetAsString(&str))
       arg_strings[it.key()] = str;
     else if (it.value().GetAsInteger(&int_num))
       arg_numbers[it.key()] = static_cast<double>(int_num);
     else if (it.value().GetAsBoolean(&boolean))
       arg_numbers[it.key()] = static_cast<double>(boolean ? 1 : 0);
     else if (it.value().GetAsDouble(&double_num))
       arg_numbers[it.key()] = double_num;
     else {
-      LOG(ERROR) << "Value type of argument is not supported: " <<
+      LOG(WARNING) << "Value type of argument is not supported: " <<
           static_cast<int>(it.value().GetType());
-      return false;  // Invalid trace event JSON format.
+      continue;  // Skip non-supported arguments.
     }
   }
 
   return true;
 }
 
 double TraceEvent::GetAbsTimeToOtherEvent() const {
   return fabs(other_event->timestamp - timestamp);
 }
 
@@ skipping 844 matching lines @@
   end_position = (end_position < events.size()) ? end_position : events.size();
   size_t count = 0u;
   for (size_t i = begin_position; i < end_position; ++i) {
     if (query.Evaluate(*events.at(i)))
       ++count;
   }
   return count;
 }
 
 }  // namespace trace_analyzer