Simplify tracing of gpu memory

gpu/command_buffer/service/memory_tracking.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.
 
 #ifndef GPU_COMMAND_BUFFER_SERVICE_MEMORY_TRACKING_H_
 #define GPU_COMMAND_BUFFER_SERVICE_MEMORY_TRACKING_H_
 
 #include <string>
 #include "base/basictypes.h"
 #include "base/debug/trace_event.h"
@@ skipping 15 matching lines @@
  private:
   DISALLOW_COPY_AND_ASSIGN(MemoryTracker);
 };
 
 // A MemoryTypeTracker tracks the use of a particular type of memory (buffer,
 // texture, or renderbuffer) and forward the result to a specified
 // MemoryTracker.
 class MemoryTypeTracker {
  public:
   MemoryTypeTracker(
-    MemoryTracker* memory_tracker,
-    const char* trace_category,
-    const char* trace_name)
+    MemoryTracker* memory_tracker)

[piman, 2012/09/15 01:14:05]

nit: fit on previous line?

     : memory_tracker_(memory_tracker),
-      trace_category_(trace_category),
-      trace_name_(trace_name),
       has_updated_mem_represented_(false),
       last_updated_mem_represented_(0) {
   }
 
   void UpdateMemRepresented(size_t mem_represented) {
     if (!has_updated_mem_represented_ &&
         mem_represented == last_updated_mem_represented_) {
       return;
     }
     if (memory_tracker_) {
       memory_tracker_->TrackMemoryAllocatedChange(
         last_updated_mem_represented_,
         mem_represented);
     }
     has_updated_mem_represented_ = true;
     last_updated_mem_represented_ = mem_represented;
-    if (trace_category_ && trace_name_ && memory_tracker_) {
-      TRACE_COUNTER_ID1(trace_category_,
-                        trace_name_,
-                        memory_tracker_,
-                        last_updated_mem_represented_);
-    }
   }
 
   size_t GetMemRepresented() const {
     return last_updated_mem_represented_;
   }
 
  private:
   MemoryTracker* memory_tracker_;
-  const char* trace_category_;
-  const char* trace_name_;
   bool has_updated_mem_represented_;
   size_t last_updated_mem_represented_;
 
   DISALLOW_COPY_AND_ASSIGN(MemoryTypeTracker);
 };
 
 }  // namespace gles2
 }  // namespace gpu
 
 #endif  // GPU_COMMAND_BUFFER_SERVICE_MEMORY_TRACKING_H_