Get SkiaServe Request started off with a little privacy

tools/skiaserve/urlhandlers/EnableGPUHandler.cpp

 /*
  * Copyright 2016 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "UrlHandler.h"
 
 #include "microhttpd.h"
@@ skipping 14 matching lines @@
     SkTArray<SkString> commands;
     SkStrSplit(url, "/", &commands);
 
     if (commands.count() != 2) {
         return MHD_NO;
     }
 
     int enable;
     sscanf(commands[1].c_str(), "%d", &enable);
 
-    if (enable) {
-        SkSurface* surface = request->createGPUSurface();
-        if (surface) {
-            request->fSurface.reset(surface);
-            request->fGPUEnabled = true;
-            return SendOK(connection);
-        }
+    bool success = request->enableGPU(enable);
+    if (!success) {
         return SendError(connection, "Unable to create GPU surface");
     }
-    request->fSurface.reset(request->createCPUSurface());
-    request->fGPUEnabled = false;
     return SendOK(connection);
 }