Changed pack alignment of GPU command buffer commands.

gpu/command_buffer/common/gles2_cmd_format.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.
 
 // This file defines the GLES2 command buffer commands.
 
 #ifndef GPU_COMMAND_BUFFER_COMMON_GLES2_CMD_FORMAT_H_
 #define GPU_COMMAND_BUFFER_COMMON_GLES2_CMD_FORMAT_H_
 
 
@@ skipping 24 matching lines @@
 typedef float GLclampf;
 typedef double GLdouble;
 typedef double GLclampd;
 typedef void GLvoid;
 typedef khronos_intptr_t GLintptr;
 typedef khronos_ssize_t  GLsizeiptr;
 
 namespace gpu {
 namespace gles2 {
 
-#pragma pack(push, 1)
+// Command buffer is 4 byte aligned.
+#pragma pack(push, 4)
 
 namespace id_namespaces {
 
 // These are used when contexts share resources.
 enum IdNamespaces {
   kBuffers,
   kFramebuffers,
   kProgramsAndShaders,
   kRenderbuffers,
   kTextures,
@@ skipping 382 matching lines @@
   CommandHeader header;
 };
 
 #pragma pack(pop)
 
 }  // namespace cmd
 }  // namespace gles2
 }  // namespace gpu
 
 #endif  // GPU_COMMAND_BUFFER_COMMON_GLES2_CMD_FORMAT_H_