Add GL_EXT_multisampled_render_to_texture support to command buffer.

gpu/command_buffer/common/gles2_cmd_utils.cc

Index: gpu/command_buffer/common/gles2_cmd_utils.cc
diff --git a/gpu/command_buffer/common/gles2_cmd_utils.cc b/gpu/command_buffer/common/gles2_cmd_utils.cc
index ef0f3ead7f6fb6ced61759439a2595b11b6dea6d..25eafcd8a267fdf55826ac44a5120e77822578b0 100644
--- a/gpu/command_buffer/common/gles2_cmd_utils.cc
+++ b/gpu/command_buffer/common/gles2_cmd_utils.cc
@@ -228,8 +228,12 @@ int GLES2Util::GLGetNumValuesReturned(int id) const {
       return 1;
     case GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_CUBE_MAP_FACE:
       return 1;
+    // -- glGetFramebufferAttachmentParameteriv with
+    //    GL_EXT_multisampled_render_to_texture
+    case GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_SAMPLES_EXT:
+      return 1;
 
-    // -- glGetFramebufferAttachmentParameteriv
+    // -- glGetProgramiv
     case GL_DELETE_STATUS:
       return 1;
     case GL_LINK_STATUS:
@@ -269,6 +273,10 @@ int GLES2Util::GLGetNumValuesReturned(int id) const {
       return 1;
     case GL_RENDERBUFFER_STENCIL_SIZE:
       return 1;
+    // -- glGetRenderbufferAttachmentParameteriv with
+    //    GL_EXT_multisampled_render_to_texture
+    case GL_RENDERBUFFER_SAMPLES_EXT:
+      return 1;
 
     // -- glGetShaderiv
     case GL_SHADER_TYPE: