Add transfer buffer to GLCaps

src/gpu/gl/GrGLBufferImpl.cpp

 /*
  * Copyright 2013 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "GrGLBufferImpl.h"
 #include "GrGLGpu.h"
 
@@ skipping 93 matching lines @@
     fGLSizeInBytes = fDesc.fSizeInBytes;
 #else
     fGLSizeInBytes = srcSizeInBytes;
 #endif
     VALIDATE();
     return true;
 }
 
 void GrGLBufferImpl::validate() const {
     SkASSERT(GR_GL_ARRAY_BUFFER == fBufferType || GR_GL_ELEMENT_ARRAY_BUFFER == fBufferType ||
-             GR_GL_PIXEL_PACK_BUFFER == fBufferType || GR_GL_PIXEL_UNPACK_BUFFER == fBufferType);
+             GR_GL_PIXEL_PACK_BUFFER == fBufferType || GR_GL_PIXEL_UNPACK_BUFFER == fBufferType ||
+             GR_GL_PIXEL_PACK_TRANSFER_BUFFER_CHROMIUM == fBufferType ||
+             GR_GL_PIXEL_UNPACK_TRANSFER_BUFFER_CHROMIUM == fBufferType);
     // The following assert isn't valid when the buffer has been abandoned:
     // SkASSERT((0 == fDesc.fID) == (fCPUData));
     SkASSERT(nullptr == fCPUData || 0 == fGLSizeInBytes);
     SkASSERT(nullptr == fMapPtr || fCPUData || fGLSizeInBytes <= fDesc.fSizeInBytes);
     SkASSERT(nullptr == fCPUData || nullptr == fMapPtr || fCPUData == fMapPtr);
 }