Moves GPUMetricsProvider to //components/metrics.

chrome/chrome_tests_unit.gypi

 # Copyright 2012 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.
 {
   'variables': {
     'chrome_unit_tests_sources': [
       '../apps/app_shim/app_shim_host_mac_unittest.cc',
       '../apps/app_shim/extension_app_shim_handler_mac_unittest.cc',
       '../apps/saved_files_service_unittest.cc',
       '../components/autofill/content/renderer/test_password_autofill_agent.cc',
@@ skipping 511 matching lines @@
       'browser/media_galleries/media_galleries_permission_controller_unittest.cc',
       'browser/media_galleries/media_galleries_permissions_unittest.cc',
       'browser/media_galleries/media_galleries_preferences_unittest.cc',
       'browser/media_galleries/media_galleries_scan_result_controller_unittest.cc',
       'browser/media_galleries/media_scan_manager_unittest.cc',
       'browser/media_galleries/win/mtp_device_delegate_impl_win_unittest.cc',
       'browser/media_galleries/win/mtp_device_object_enumerator_unittest.cc',
       'browser/metrics/chrome_metrics_service_accessor_unittest.cc',
       'browser/metrics/cloned_install_detector_unittest.cc',
       'browser/metrics/extensions_metrics_provider_unittest.cc',
-      'browser/metrics/gpu_metrics_provider_unittest.cc',
       'browser/metrics/plugin_metrics_provider_unittest.cc',
       'browser/metrics/profiler_metrics_provider_unittest.cc',
       'browser/metrics/signin_status_metrics_provider_unittest.cc',
       'browser/metrics/rappor/sampling_unittest.cc',
       'browser/metrics/thread_watcher_unittest.cc',
       'browser/metrics/thread_watcher_android_unittest.cc',
       'browser/metrics/time_ticks_experiment_unittest.cc',
       'browser/metrics/variations/generated_resources_map_lookup_unittest.cc',
       'browser/metrics/variations/variations_request_scheduler_mobile_unittest.cc',
       'browser/metrics/variations/variations_request_scheduler_unittest.cc',
@@ skipping 2332 matching lines @@
               'dependencies': [
                 '../tools/xdisplaycheck/xdisplaycheck.gyp:xdisplaycheck',
               ],
             }],
           ],
         },
       ],
     }],
   ],  # 'conditions'
 }