Issue #26 Part 2a: make more EME code conditional.

- Exclude missed MediaKey functions and CDMProxy code.
- Exclude EME APIs frm being built (webidl change)
- Fix tests in --disable-eme state

dom/media/platforms/PDMFactory.cpp

@@ -24,7 +24,6 @@
 #endif
 #include "GMPDecoderModule.h"
 
-#include "mozilla/CDMProxy.h"
 #include "mozilla/ClearOnShutdown.h"
 #include "mozilla/SharedThreadPool.h"
 #include "mozilla/StaticPtr.h"
@@ -37,7 +36,11 @@
 #include "H264Converter.h"
 
 #include "AgnosticDecoderModule.h"
+
+#ifdef MOZ_EME
+#include "mozilla/CDMProxy.h"
 #include "EMEDecoderModule.h"
+#endif
 
 #include "DecoderDoctorDiagnostics.h"
 
@@ -463,11 +466,13 @@ PDMFactory::GetDecoder(const TrackInfo& aTrackInfo,
   return pdm.forget();
 }
 
+#ifdef MOZ_EME
 void
 PDMFactory::SetCDMProxy(CDMProxy* aProxy)
 {
   RefPtr<PDMFactory> m = new PDMFactory();
   mEMEPDM = new EMEDecoderModule(aProxy, m);
 }
+#endif
 
 }  // namespace mozilla

dom/media/platforms/PDMFactory.h

@@ -11,7 +11,9 @@
 #include "mozilla/Function.h"
 #include "mozilla/StaticMutex.h"
 
+#ifdef MOZ_EME
 class CDMProxy;
+#endif
 
 namespace mozilla {
 
@@ -38,12 +40,14 @@ public:
   bool Supports(const TrackInfo& aTrackInfo,
                 DecoderDoctorDiagnostics* aDiagnostics) const;
 
+#ifdef MOZ_EME
   // Creates a PlatformDecoderModule that uses a CDMProxy to decrypt or
   // decrypt-and-decode EME encrypted content. If the CDM only decrypts and
   // does not decode, we create a PDM and use that to create MediaDataDecoders
   // that we use on on aTaskQueue to decode the decrypted stream.
   // This is called on the decode task queue.
   void SetCDMProxy(CDMProxy* aProxy);
+#endif
 
   static constexpr int kYUV400 = 0;
   static constexpr int kYUV420 = 1;

dom/media/platforms/moz.build

@@ -30,11 +30,13 @@ UNIFIED_SOURCES += [
 ]
 
 DIRS += [
-    'agnostic/eme',
     'agnostic/gmp',
     'omx'
 ]
 
+if CONFIG['MOZ_EME']:
+    DIRS += ['agnostic/eme']
+
 if CONFIG['MOZ_WMF']:
     DIRS += [ 'wmf' ];