gpu: Use correct enum values for CHROMIUM_pixel_transfer_buffer_object.

gpu/GLES2/gl2extchromium.h

Index: gpu/GLES2/gl2extchromium.h
diff --git a/gpu/GLES2/gl2extchromium.h b/gpu/GLES2/gl2extchromium.h
index b8dbc30f80a6f65ea3d37058ada2ba053094c1e8..dcb355ad3e74a28758e0446812c8d72e9a5ffcce 100644
--- a/gpu/GLES2/gl2extchromium.h
+++ b/gpu/GLES2/gl2extchromium.h
@@ -70,8 +70,7 @@ typedef void (GL_APIENTRYP PFNGLCONSUMETEXTURECHROMIUMPROC) (
 #define GL_CHROMIUM_pixel_transfer_buffer_object 1
 
 #ifndef GL_PIXEL_UNPACK_TRANSFER_BUFFER_CHROMIUM
-// TODO(reveman): Get official numbers for this constants.
-#define GL_PIXEL_UNPACK_TRANSFER_BUFFER_CHROMIUM 0x88EC
+#define GL_PIXEL_UNPACK_TRANSFER_BUFFER_CHROMIUM 0x78EC
 
 #ifdef GL_GLEXT_PROTOTYPES
 GL_APICALL void* GL_APIENTRY glMapBufferCHROMIUM(GLuint target,GLenum access);
@@ -83,8 +82,7 @@ typedef GLboolean (GL_APIENTRY PFNGLUNMAPBUFFERCHROMIUM) (GLuint target);
 #endif  /* GL_CHROMIUM_pixel_transfer_buffer_object */
 
 #ifndef GL_PIXEL_UNPACK_TRANSFER_BUFFER_BINDING_CHROMIUM
-// TODO(reveman): Get official numbers for this constants.
-#define GL_PIXEL_UNPACK_TRANSFER_BUFFER_BINDING_CHROMIUM 0x88EF
+#define GL_PIXEL_UNPACK_TRANSFER_BUFFER_BINDING_CHROMIUM 0x78EF
 #endif
 #endif  /* GL_CHROMIUM_pixel_transfer_buffer_object */