Fixed not-unique event 'id' in TRACE_EVENT from GLARBTimerTrace

gpu/command_buffer/service/gpu_tracer.h

Index: gpu/command_buffer/service/gpu_tracer.h
diff --git a/gpu/command_buffer/service/gpu_tracer.h b/gpu/command_buffer/service/gpu_tracer.h
index f64455c067109924b5626f8bc8ea55fbd0fe7a6f..528887f2a2411d7df56769c2b942b9a284f0ec5f 100644
--- a/gpu/command_buffer/service/gpu_tracer.h
+++ b/gpu/command_buffer/service/gpu_tracer.h
@@ -10,6 +10,10 @@
 
 #include "base/basictypes.h"
 #include "base/memory/scoped_ptr.h"
+#include "base/memory/weak_ptr.h"
+#include "base/threading/thread.h"
+#include "gpu/gpu_export.h"
+#include "ui/gl/gl_bindings.h"
 
 namespace gpu {
 namespace gles2 {
@@ -36,6 +40,90 @@ class GPUTracer {
   DISALLOW_COPY_AND_ASSIGN(GPUTracer);
 };
 
+class Outputter : public base::RefCounted<Outputter> {
+ public:
+  virtual void Trace(const std::string& name,
+                     int64 start_time,
+                     int64 end_time) = 0;
+
+ protected:
+  virtual ~Outputter() {}
+  friend class base::RefCounted<Outputter>;
+};
+
+class TraceOutputter : public Outputter {
+ public:
+  static scoped_refptr<TraceOutputter> Create(const std::string& name);
+  virtual void Trace(const std::string& name,
+                     int64 start_time,
+                     int64 end_time) OVERRIDE;
+
+ protected:
+  friend class base::RefCounted<Outputter>;
+  explicit TraceOutputter(const std::string& name);
+  virtual ~TraceOutputter();
+
+  base::Thread named_thread_;
+  uint64 local_trace_id_;
+
+  DISALLOW_COPY_AND_ASSIGN(TraceOutputter);
+};
+
+class GPU_EXPORT Trace : public base::RefCounted<Trace> {
+ public:
+  explicit Trace(const std::string& name) : name_(name) {}
+
+  virtual void Start() = 0;
+  virtual void End() = 0;
+
+  // True if the the results of this query are available.
+  virtual bool IsAvailable() = 0;
+
+  virtual bool IsProcessable();
+  virtual void Process() = 0;
+
+  virtual const std::string& name();
+
+ protected:
+  virtual ~Trace() {}
+
+ private:
+  friend class base::RefCounted<Trace>;
+
+  std::string name_;
+
+  DISALLOW_COPY_AND_ASSIGN(Trace);
+};
+
+class GPU_EXPORT GLARBTimerTrace : public Trace {
+ public:
+  GLARBTimerTrace(scoped_refptr<Outputter> outputter,
+                  const std::string& name,
+                  int64 offset);
+
+  // Implementation of Tracer
+  virtual void Start() OVERRIDE;
+  virtual void End() OVERRIDE;
+  virtual bool IsAvailable() OVERRIDE;
+  virtual void Process() OVERRIDE;
+
+ private:
+  virtual ~GLARBTimerTrace();
+
+  void Output();
+
+  scoped_refptr<Outputter> outputter_;
+
+  int64 offset_;
+  int64 start_time_;
+  int64 end_time_;
+  bool end_requested_;
+
+  GLuint queries_[2];
+
+  DISALLOW_COPY_AND_ASSIGN(GLARBTimerTrace);
+};
+
 }  // namespace gles2
 }  // namespace gpu