viz: Use a simple GpuMemoryBufferManager implementation.

components/viz/service/BUILD.gn

 # Copyright 2017 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("//testing/test.gni")
 
 config("viz_service_implementation") {
 }
 
 component("service") {
   sources = [
     "display_compositor/buffer_queue.cc",
     "display_compositor/buffer_queue.h",
     "display_compositor/compositor_overlay_candidate_validator.h",
     "display_compositor/display_output_surface.cc",
     "display_compositor/display_output_surface.h",
     "display_compositor/display_provider.h",
     "display_compositor/gl_helper.cc",
     "display_compositor/gl_helper.h",
     "display_compositor/gl_helper_readback_support.cc",
     "display_compositor/gl_helper_readback_support.h",
     "display_compositor/gl_helper_scaling.cc",
     "display_compositor/gl_helper_scaling.h",
     "display_compositor/gpu_display_provider.cc",
     "display_compositor/gpu_display_provider.h",
     "display_compositor/host_shared_bitmap_manager.cc",
     "display_compositor/host_shared_bitmap_manager.h",
+    "display_compositor/in_process_gpu_memory_buffer_manager.cc",
+    "display_compositor/in_process_gpu_memory_buffer_manager.h",
     "frame_sinks/frame_eviction_manager.cc",
     "frame_sinks/frame_eviction_manager.h",
     "frame_sinks/frame_evictor.cc",
     "frame_sinks/frame_evictor.h",
     "frame_sinks/gpu_compositor_frame_sink.cc",
     "frame_sinks/gpu_compositor_frame_sink.h",
     "frame_sinks/gpu_compositor_frame_sink_delegate.h",
     "frame_sinks/gpu_root_compositor_frame_sink.cc",
     "frame_sinks/gpu_root_compositor_frame_sink.h",
     "frame_sinks/mojo_frame_sink_manager.cc",
     "frame_sinks/mojo_frame_sink_manager.h",
     "viz_service_export.h",
   ]
 
   defines = [ "VIZ_SERVICE_IMPLEMENTATION" ]
 
   configs += [ "//build/config/compiler:no_size_t_to_int_warning" ]
 
   public_deps = [
     "//base",
     "//cc",
     "//cc/ipc:interfaces",
     "//cc/surfaces",
     "//gpu/command_buffer/client",
     "//gpu/command_buffer/client:gles2_interface",
     "//gpu/command_buffer/common",
     "//gpu/ipc:command_buffer",
+    "//gpu/ipc/client",

[danakj, 2017/06/20 14:52:41]

i didn't see this used while reading through?

     "//gpu/ipc/common:surface_handle_type",
+    "//gpu/ipc/service",
     "//skia",
     "//ui/display/types",
     "//ui/gfx",
   ]
 
   if (is_mac) {
     sources += [
       "display_compositor/compositor_overlay_candidate_validator_mac.h",
       "display_compositor/compositor_overlay_candidate_validator_mac.mm",
     ]
@@ skipping 122 matching lines @@
     "//skia",
     "//testing/gmock",
     "//testing/gtest",
     "//ui/gl:test_support",
   ]
 
   data_deps = [
     "//third_party/mesa:osmesa",
   ]
 }