viz: Use a simple GpuMemoryBufferManager implementation.

services/ui/gpu/BUILD.gn

 # Copyright 2016 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.
 
 import("//build/config/ui.gni")
 import("//services/catalog/public/tools/catalog.gni")
 import("//services/service_manager/public/service_manifest.gni")
 import("//testing/test.gni")
 
 source_set("gpu") {
   output_name = "mus_gpu"
 
   sources = [
     "gpu_main.cc",
     "gpu_main.h",
     "gpu_service.cc",
     "gpu_service.h",
   ]
 
   defines = [ "NOTIMPLEMENTED_POLICY=5" ]
 
   deps = [
     "//cc",
-    "//components/viz/common",
     "//components/viz/service",
     "//gpu/ipc:command_buffer",
     "//gpu/ipc/common",
     "//gpu/ipc/service",
     "//ipc",
     "//media/gpu/ipc/service",
     "//mojo/public/cpp/system",
     "//services/service_manager/public/cpp",
     "//services/ui/gpu/interfaces",
     "//services/ui/public/interfaces",
@@ skipping 33 matching lines @@
   service_manifest("unittest_manifest") {
     name = "mus_gpu_unittests"
     source = "test_manifest.json"
   }
 
   catalog("tests_catalog") {
     testonly = true
     embedded_services = [ ":unittest_manifest" ]
   }
 }