Issue #80 - De-unify dom/media part 1

This de-unifies up to and including dom/media/platforms with the exception of
dom/media/platforms/wmf, because that one throws weird errors in the Win
SDK which don't have a clear cause (yet)

dom/media/gmp/GMPDecryptorParent.cpp

@@ -4,7 +4,9 @@
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 #include "GMPDecryptorParent.h"
+
 #include "GMPContentParent.h"
+#include "GMPUtils.h"
 #include "MediaData.h"
 #include "mozilla/Unused.h"
 

dom/media/gmp/GMPUtils.cpp

@@ -10,8 +10,10 @@
 #include "nsCOMPtr.h"
 #include "nsLiteralString.h"
 #include "nsCRTGlue.h"
+#include "mozIGeckoMediaPluginService.h"
 #include "mozilla/Base64.h"
 #include "nsISimpleEnumerator.h"
+#include "prio.h"
 
 namespace mozilla {
 

dom/media/gmp/moz.build

@@ -87,7 +87,7 @@ if CONFIG['OS_TARGET'] == 'Android':
         'rlz',
     ]
 
-UNIFIED_SOURCES += [
+SOURCES += [
     'GMPAudioDecoderChild.cpp',
     'GMPAudioDecoderParent.cpp',
     'GMPAudioHost.cpp',
@@ -123,7 +123,7 @@ UNIFIED_SOURCES += [
 ]
 
 if CONFIG['MOZ_EME']:
-    UNIFIED_SOURCES += [
+    SOURCES += [
         'GMPCDMCallbackProxy.cpp',
         'GMPCDMProxy.cpp',
     ]