Implement sampling profiler (chromium side change)

content/common/gpu/client/gl_helper_unittests.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 <stdio.h>
 #include <cmath>
 #include <string>
 #include <vector>
 
 #include <GLES2/gl2.h>
@@ skipping 65 matching lines @@
 
   virtual void TearDown() {
     helper_scaling_.reset(NULL);
     helper_.reset(NULL);
     context_.reset(NULL);
   }
 
   void StartTracing(const std::string& filter) {
     base::debug::TraceLog::GetInstance()->SetEnabled(
         base::debug::CategoryFilter(filter),
+        base::debug::TraceLog::RECORDING_MODE,
         base::debug::TraceLog::RECORD_UNTIL_FULL);
   }
 
   static void TraceDataCB(
       const base::Callback<void()>& callback,
       std::string* output,
       const scoped_refptr<base::RefCountedString>& json_events_str,
       bool has_more_events) {
     if (output->size() > 1) {
       output->append(",");
@@ skipping 1288 matching lines @@
 #if defined(TOOLKIT_GTK)
   gfx::GtkInitFromCommandLine(*CommandLine::ForCurrentProcess());
 #endif
   gfx::GLSurface::InitializeOneOff();
   gpu::ApplyGpuDriverBugWorkarounds(CommandLine::ForCurrentProcess());
 
   content::UnitTestTestSuite runner(suite);
   base::MessageLoop message_loop;
   return runner.Run();
 }