Update from https://crrev.com/317530

gpu/command_buffer/common/gles2_cmd_utils.cc

 // 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 is here so other GLES2 related files can have a common set of
 // includes where appropriate.
 
 #include <sstream>
 #include <GLES2/gl2.h>
 #include <GLES2/gl2ext.h>
@@ skipping 828 matching lines @@
   switch (buffer) {
     case GL_COLOR:
       return 4;
     case GL_DEPTH:
       return 1;
     default:
       return 0;
   }
 }
 
+// static
+void GLES2Util::MapUint64ToTwoUint32(
+    uint64_t v64, uint32_t* v32_0, uint32_t* v32_1) {
+  DCHECK(v32_0 && v32_1);
+  *v32_0 = static_cast<uint32_t>(v64 & 0xFFFFFFFF);
+  *v32_1 = static_cast<uint32_t>((v64 & 0xFFFFFFFF00000000) >> 32);
+}
+
+// static
+uint64_t GLES2Util::MapTwoUint32ToUint64(uint32_t v32_0, uint32_t v32_1) {
+  uint64_t v64 = v32_1;
+  return (v64 << 32) | v32_0;
+}
+
 namespace {
 
 // WebGraphicsContext3DCommandBufferImpl configuration attributes. Those in
 // the 16-bit range are the same as used by EGL. Those outside the 16-bit range
 // are unique to Chromium. Attributes are matched using a closest fit algorithm.
 
 // From <EGL/egl.h>.
 const int32 kAlphaSize       = 0x3021;  // EGL_ALPHA_SIZE
 const int32 kBlueSize        = 0x3022;  // EGL_BLUE_SIZE
 const int32 kGreenSize       = 0x3023;  // EGL_GREEN_SIZE
@@ skipping 133 matching lines @@
   }
 
   return true;
 }
 
 #include "gpu/command_buffer/common/gles2_cmd_utils_implementation_autogen.h"
 
 }  // namespace gles2
 }  // namespace gpu