media: Use platform specific folders for CDMs

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': [
       # histograms.xml is analyzed by AboutFlagsHistogramTest, so this
       # dependency is needed to make commit bots run unit_tests on
       # histograms.xml changes.
       '../tools/metrics/histograms/histograms.xml',
@@ skipping 2133 matching lines @@
         ['enable_plugins==1 and disable_nacl==0', {
           'dependencies': [
             '<(DEPTH)/components/nacl/renderer/plugin/plugin.gyp:nacl_trusted_plugin',
           ],
         }],
         ['toolkit_views==1', {
           'dependencies': [
             '../ui/views/views.gyp:views',
           ],
         }],
+        ['enable_pepper_cdms==1', {
+          'sources' : [
+            'browser/media/pepper_cdm_test_helper.cc',

[ddorwin, 2016/05/19 00:04:26]

This is in a different place from the GN version. Just confirming that this is
intentional.

[xhwang, 2016/05/20 00:22:35]

In gyp it's a big test_support_common target. In GN it's split into smaller
ones. 

+            'browser/media/pepper_cdm_test_helper.h',
+          ],
+          'dependencies': [
+            '../media/media.gyp:media',
+          ],
+        }],
       ],
     },
     {
       # GN version: //chrome/test:test_support_unit
       'target_name': 'test_support_unit',
       'type': 'static_library',
       'dependencies': [
         'chrome_resources.gyp:chrome_resources',
         'chrome_resources.gyp:chrome_strings',
         'browser',
@@ skipping 824 matching lines @@
               'dependencies': [
                 '../tools/xdisplaycheck/xdisplaycheck.gyp:xdisplaycheck',
               ],
             }],
           ],
         },
       ],
     }],
   ],  # 'conditions'
 }