Remove header file that doesn't exist from build files.

media/media.gyp

 # Copyright (c) 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': {
     'chromium_code': 1,
     # Override to dynamically link the cras (ChromeOS audio) library.
     'use_cras%': 0,
     # Option e.g. for Linux distributions to link pulseaudio directly
@@ skipping 327 matching lines @@
         'base/player_tracker.cc',
         'base/player_tracker.h',
         'base/ranges.cc',
         'base/ranges.h',
         'base/renderer.cc',
         'base/renderer.h',
         'base/renderer_factory.cc',
         'base/renderer_factory.h',
         'base/sample_format.cc',
         'base/sample_format.h',
-        'base/scoped_histogram_timer.h',
         'base/seekable_buffer.cc',
         'base/seekable_buffer.h',
         'base/serial_runner.cc',
         'base/serial_runner.h',
         'base/simd/convert_rgb_to_yuv.h',
         'base/simd/convert_rgb_to_yuv_c.cc',
         'base/simd/convert_yuv_to_rgb.h',
         'base/simd/convert_yuv_to_rgb_c.cc',
         'base/simd/filter_yuv.h',
         'base/simd/filter_yuv_c.cc',
@@ skipping 1568 matching lines @@
             '../build/isolate.gypi',
           ],
           'sources': [
             'media_unittests.isolate',
           ],
         },
       ],
     }],
   ],
 }