Execute all GL commands up to the put offset reported by a flush.

gpu/command_buffer/service/gles2_cmd_decoder.cc

Index: gpu/command_buffer/service/gles2_cmd_decoder.cc
===================================================================
--- gpu/command_buffer/service/gles2_cmd_decoder.cc	(revision 92876)
+++ gpu/command_buffer/service/gles2_cmd_decoder.cc	(working copy)
@@ -478,7 +478,6 @@
 
   virtual void SetResizeCallback(Callback1<gfx::Size>::Type* callback);
   virtual void SetSwapBuffersCallback(Callback0::Type* callback);
-  virtual void SetLatchCallback(const base::Callback<void(bool)>& callback);;
   virtual bool GetServiceTextureId(uint32 client_texture_id,
                                    uint32* service_texture_id);
 
@@ -1271,7 +1270,6 @@
 
   scoped_ptr<Callback1<gfx::Size>::Type> resize_callback_;
   scoped_ptr<Callback0::Type> swap_buffers_callback_;
-  base::Callback<void(bool)> latch_callback_;
 
   // The format of the back buffer_
   GLenum back_buffer_color_format_;
@@ -2356,11 +2354,6 @@
   swap_buffers_callback_.reset(callback);
 }
 
-void GLES2DecoderImpl::SetLatchCallback(
-    const base::Callback<void(bool)>& callback) {
-  latch_callback_ = callback;
-}
-
 bool GLES2DecoderImpl::GetServiceTextureId(uint32 client_texture_id,
                                            uint32* service_texture_id) {
   TextureManager::TextureInfo* texture =
@@ -6527,62 +6520,6 @@
   return error::kNoError;
 }
 
-error::Error GLES2DecoderImpl::HandleSetLatchCHROMIUM(
-    uint32 immediate_data_size, const gles2::SetLatchCHROMIUM& c) {
-  TRACE_EVENT1("gpu", "SetLatch", "latch_id", c.latch_id);
-  // Ensure the side effects of previous commands are visible to other contexts.
-  // There is no need to do this for ANGLE because it uses a
-  // single D3D device for all contexts.
-  if (!IsAngle())
-    glFlush();
-
-  int32 shm_id = gpu::kLatchSharedMemoryId;
-  uint32 latch_id = c.latch_id;
-  uint32 shm_offset = 0;
-  base::subtle::Atomic32* latch;
-  if (!SafeMultiplyUint32(latch_id, sizeof(*latch), &shm_offset)) {
-    return error::kOutOfBounds;
-  }
-  latch = GetSharedMemoryAs<base::subtle::Atomic32*>(
-      shm_id, shm_offset, sizeof(*latch));
-  if (!latch) {
-    return error::kOutOfBounds;
-  }
-  base::subtle::Atomic32 old =
-      base::subtle::NoBarrier_CompareAndSwap(latch, 0, 1);
-  DCHECK(old == 0);
-  if (!latch_callback_.is_null())
-    latch_callback_.Run(true);
-  return error::kNoError;
-}
-
-error::Error GLES2DecoderImpl::HandleWaitLatchCHROMIUM(
-    uint32 immediate_data_size, const gles2::WaitLatchCHROMIUM& c) {
-  TRACE_EVENT1("gpu", "WaitLatch", "latch_id", c.latch_id);
-  int32 shm_id = gpu::kLatchSharedMemoryId;
-  uint32 latch_id = c.latch_id;
-  uint32 shm_offset = 0;
-  base::subtle::Atomic32* latch;
-  if (!SafeMultiplyUint32(latch_id, sizeof(*latch), &shm_offset)) {
-    return error::kOutOfBounds;
-  }
-  latch = GetSharedMemoryAs<base::subtle::Atomic32*>(
-      shm_id, shm_offset, sizeof(*latch));
-  if (!latch) {
-    return error::kOutOfBounds;
-  }
-
-  base::subtle::Atomic32 old =
-      base::subtle::NoBarrier_CompareAndSwap(latch, 1, 0);
-  if (old == 0) {
-    if (!latch_callback_.is_null())
-      latch_callback_.Run(false);
-    return error::kWaiting;
-  } else {
-    return error::kNoError;
-  }
-}
-
 error::Error GLES2DecoderImpl::HandleCommandBufferEnableCHROMIUM(
     uint32 immediate_data_size, const gles2::CommandBufferEnableCHROMIUM& c) {
   Bucket* bucket = GetBucket(c.bucket_id);