Minor improvement in uniform block backing buffer validation.

gpu/command_buffer/service/buffer_manager.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_BUFFER_MANAGER_H_
 #define GPU_COMMAND_BUFFER_SERVICE_BUFFER_MANAGER_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 319 matching lines @@
   // doesn't exist, is mapped, or smaller than |variable_sizes[ii]| * |count|.
   // Return true otherwise.
   bool RequestBuffersAccess(
       ErrorState* error_state,
       const IndexedBufferBindingHost* bindings,
       const std::vector<GLsizeiptr>& variable_sizes,
       GLsizei count,
       const char* func_name,
       const char* message_tag);
 
-  uint32_t mapped_buffer_count() const {
-    return mapped_buffer_count_;
-  }
-
  private:
   friend class Buffer;
   friend class TestHelper;  // Needs access to DoBufferData.
   friend class BufferManagerTestBase;  // Needs access to DoBufferSubData.
   friend class IndexedBufferBindingHostTest;  // Needs access to SetInfo.
 
   void StartTracking(Buffer* buffer);
   void StopTracking(Buffer* buffer);
 
   // Does a glBufferSubData and updates the appropriate accounting.
@@ skipping 30 matching lines @@
   bool UseShadowBuffer(GLenum target, GLenum usage);
 
   // Sets the size, usage and initial data of a buffer.
   // If data is NULL buffer will be initialized to 0 if shadowed.
   void SetInfo(Buffer* buffer,
                GLenum target,
                GLsizeiptr size,
                GLenum usage,
                bool use_shadow);
 
-  void IncreaseMappedBufferCount();
-  void DecreaseMappedBufferCount();
-
   std::unique_ptr<MemoryTypeTracker> memory_type_tracker_;
   MemoryTracker* memory_tracker_;
   scoped_refptr<FeatureInfo> feature_info_;
 
   // Info for each buffer in the system.
   typedef base::hash_map<GLuint, scoped_refptr<Buffer> > BufferMap;
   BufferMap buffers_;
 
   // The maximum size of buffers.
   GLsizeiptr max_buffer_size_;
 
   // Whether or not buffers can be bound to multiple targets.
   bool allow_buffers_on_multiple_targets_;
 
   // Whether or not allow using GL_FIXED type for vertex attribs.
   bool allow_fixed_attribs_;
 
   // Counts the number of Buffer allocated with 'this' as its manager.
   // Allows to check no Buffer will outlive this.
   unsigned int buffer_count_;
 
   GLuint primitive_restart_fixed_index_;
 
   bool lost_context_;
   bool use_client_side_arrays_for_stream_buffers_;
 
-  // Keep track of total mapped buffer count. In most use cases it should be 0,
-  // so we could bypass checking each individual buffer as an optimization.
-  uint32_t mapped_buffer_count_;
-
   DISALLOW_COPY_AND_ASSIGN(BufferManager);
 };
 
 }  // namespace gles2
 }  // namespace gpu
 
 #endif  // GPU_COMMAND_BUFFER_SERVICE_BUFFER_MANAGER_H_