gpu: Add a class MeasurementTimers that measures wall, cpu and gpu time.

gpu/BUILD.gn

 # Copyright 2014 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.
 
 # GYP-to-GN project mappings:
 #
 #  gpu.gyp:command_buffer_client => //gpu/command_buffer/client
 #
 #  gpu.gyp:command_buffer_common => //gpu/command_buffer/common
 #
@@ skipping 231 matching lines @@
       "//ui/gfx/geometry",
       "//ui/gl",
       "//gpu/command_buffer/common:gles2_utils",
       "//gpu/command_buffer/client:gles2_c_lib",
       "//gpu/command_buffer/client:gles2_implementation",
     ]
   }
 
   test("gpu_perftests") {
     sources = [
+      "perftests/measurements.cc",
       "perftests/run_all_tests.cc",
       "perftests/texture_upload_perftest.cc",
     ]
 
     deps = [
       "//base",
       "//base/test:test_support",
+      "//gpu/command_buffer/service",
       "//testing/gtest",
       "//testing/perf",
       "//ui/gfx/geometry",
       "//ui/gl",
     ]
   }
 
   test("angle_unittests") {
     sources = [
       "angle_unittest_main.cc",
     ]
 
     deps = [
       "//base",
       "//base/test:test_support",
       "//base/third_party/dynamic_annotations",
       "//testing/gmock",
       "//testing/gtest",
       "//third_party/angle:translator_static",
     ]
   }
 }