Added a unique command buffer ID for command buffers.

gpu/command_buffer/service/in_process_command_buffer.cc

 // Copyright 2013 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 "gpu/command_buffer/service/in_process_command_buffer.h"
 
 #include <queue>
 #include <set>
 #include <utility>
 
@@ skipping 36 matching lines @@
 
 #if defined(OS_WIN)
 #include <windows.h>
 #include "base/process/process_handle.h"
 #endif
 
 namespace gpu {
 
 namespace {
 
+base::StaticAtomicSequenceNumber g_next_command_buffer_id;
+
 template <typename T>
 static void RunTaskWithResult(base::Callback<T(void)> task,
                               T* result,
                               base::WaitableEvent* completion) {
   *result = task.Run();
   completion->Signal();
 }
 
 struct GpuInProcessThreadHolder {
   GpuInProcessThreadHolder()
@@ skipping 100 matching lines @@
        gfx::g_driver_gl.ext.b_GL_OES_get_program_binary) &&
       !base::CommandLine::ForCurrentProcess()->HasSwitch(
           switches::kDisableGpuProgramCache)) {
     program_cache_.reset(new gpu::gles2::MemoryProgramCache());
   }
   return program_cache_.get();
 }
 
 InProcessCommandBuffer::InProcessCommandBuffer(
     const scoped_refptr<Service>& service)
-    : context_lost_(false),
+    : command_buffer_id_(g_next_command_buffer_id.GetNext()),
+      context_lost_(false),
       idle_work_pending_(false),
       image_factory_(nullptr),
       last_put_offset_(-1),
       gpu_memory_buffer_manager_(nullptr),
       flush_event_(false, false),
       service_(GetInitialService(service)),
       gpu_thread_weak_ptr_factory_(this) {
   DCHECK(service_.get());
   next_image_id_.GetNext();
 }
@@ skipping 650 matching lines @@
 
 void InProcessCommandBuffer::SetLock(base::Lock*) {
 }
 
 bool InProcessCommandBuffer::IsGpuChannelLost() {
   // There is no such channel to lose for in-process contexts. This only
   // makes sense for out-of-process command buffers.
   return false;
 }
 
+CommandBufferNamespace InProcessCommandBuffer::GetNamespaceID() const {
+  return kCommandBufferNamespace_InProcess;
+}
+
+uint64_t InProcessCommandBuffer::GetCommandBufferID() const {
+  return command_buffer_id_;
+}
+
 uint32 InProcessCommandBuffer::CreateStreamTextureOnGpuThread(
     uint32 client_texture_id) {
 #if defined(OS_ANDROID)
   return stream_texture_manager_->CreateStreamTexture(
       client_texture_id, decoder_->GetContextGroup()->texture_manager());
 #else
   return 0;
 #endif
 }
 
@@ skipping 94 matching lines @@
     framebuffer_completeness_cache_ =
         new gpu::gles2::FramebufferCompletenessCache;
   return framebuffer_completeness_cache_;
 }
 
 SyncPointManager* GpuInProcessThread::sync_point_manager() {
   return sync_point_manager_;
 }
 
 }  // namespace gpu