Update constructormagic.h links

webrtc/base/base.gyp

 # Copyright (c) 2014 The WebRTC project authors. All Rights Reserved.
 #
 # Use of this source code is governed by a BSD-style license
 # that can be found in the LICENSE file in the root of the source
 # tree. An additional intellectual property rights grant can be found
 # in the file PATENTS.  All contributing project authors may
 # be found in the AUTHORS file in the root of the source tree.
 
 {
   'includes': [ '../build/common.gypi', ],
@@ skipping 12 matching lines @@
       ],
     }],
   ],
   'targets': [
     {
       # The subset of rtc_base approved for use outside of libjingle.
       'target_name': 'rtc_base_approved',
       'type': 'static_library',
       'sources': [
         '../overrides/webrtc/base/basictypes.h',
-        '../overrides/webrtc/base/constructormagic.h',
+        'constructormagic.h',
         'atomicops.h',
         'basictypes.h',
         'bitbuffer.cc',
         'bitbuffer.h',
         'buffer.cc',
         'buffer.h',
         'bufferqueue.cc',
         'bufferqueue.h',
         'bytebuffer.cc',
         'bytebuffer.h',
@@ skipping 45 matching lines @@
             '../overrides',
           ],
           'sources!': [
             'basictypes.h',
             'constructormagic.h',
             'logging.cc',
             'logging.h',
           ],
         }, {
           'sources!': [
-            '../overrides/webrtc/base/basictypes.h',
-            '../overrides/webrtc/base/constructormagic.h',
+            '../overrides/webrtc/base/basictypes.h'
           ],
         }],
       ],
     },
     {
       'target_name': 'rtc_base',
       'type': 'static_library',
       'dependencies': [
         '<(webrtc_root)/common.gyp:webrtc_common',
         'rtc_base_approved',
@@ skipping 626 matching lines @@
         ['OS!="linux" and OS!="android"', {
           'sources!': [
             'linux.cc',
             'linux.h',
           ],
         }],
       ],
     },
   ],
 }