Add GL_CHROMIUM_get_error_query

gpu/command_buffer/client/query_tracker.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_CLIENT_QUERY_TRACKER_H_
 #define GPU_COMMAND_BUFFER_CLIENT_QUERY_TRACKER_H_
 
 #include <GLES2/gl2.h>
 
 #include <queue>
-#include "../../gpu_export.h"
 #include "../client/hash_tables.h"
 #include "../common/gles2_cmd_format.h"
+#include "gles2_impl_export.h"
 
 namespace gpu {
 
 class CommandBufferHelper;
 class MappedMemoryManager;
 
 namespace gles2 {
 
+class GLES2Implementation;
+
 // Manages buckets of QuerySync instances in mapped memory.
-class GPU_EXPORT QuerySyncManager {
+class GLES2_IMPL_EXPORT QuerySyncManager {
  public:
   static const size_t kSyncsPerBucket = 4096;
 
   struct QueryInfo {
     QueryInfo(int32 id, uint32 offset, QuerySync* sync_mem)
         : shm_id(id),
           shm_offset(offset),
           sync(sync_mem) {
     }
 
@@ skipping 16 matching lines @@
 
  private:
   MappedMemoryManager* mapped_memory_;
   std::queue<QuerySync*> buckets_;
   std::queue<QueryInfo> free_queries_;
 
   DISALLOW_COPY_AND_ASSIGN(QuerySyncManager);
 };
 
 // Tracks queries for client side of command buffer.
-class GPU_EXPORT QueryTracker {
+class GLES2_IMPL_EXPORT QueryTracker {
  public:
-  class GPU_EXPORT Query {
+  class GLES2_IMPL_EXPORT Query {
    public:
     enum State {
       kUninitialized,  // never used
       kActive,         // between begin - end
       kPending,        // not yet complete
       kComplete        // completed
     };
 
     Query(GLuint id, GLenum target, const QuerySyncManager::QueryInfo& info)
         : id_(id),
@@ skipping 46 matching lines @@
     }
 
     bool Pending() const {
       return state_ == kPending;
     }
 
     bool CheckResultsAvailable(CommandBufferHelper* helper);
 
     uint32 GetResult() const;
 
+    void Begin(GLES2Implementation* gl);
+    void End(GLES2Implementation* gl);
+
    private:
     friend class QueryTracker;
     friend class QueryTrackerTest;
 
     GLuint id_;
     GLenum target_;
     QuerySyncManager::QueryInfo info_;
     State state_;
     uint32 submit_count_;
     int32 token_;
@@ skipping 14 matching lines @@
   QueryMap queries_;
   QuerySyncManager query_sync_manager_;
 
   DISALLOW_COPY_AND_ASSIGN(QueryTracker);
 };
 
 }  // namespace gles2
 }  // namespace gpu
 
 #endif  // GPU_COMMAND_BUFFER_CLIENT_QUERY_TRACKER_H_