Make unprefixed EME APIs use platform and Chromium.

Source/core/platform/graphics/ContentDecryptionModule.h

Index: Source/core/platform/graphics/ContentDecryptionModule.h
diff --git a/Source/modules/donottrack/NavigatorDoNotTrack.h b/Source/core/platform/graphics/ContentDecryptionModule.h
similarity index 67%
copy from Source/modules/donottrack/NavigatorDoNotTrack.h
copy to Source/core/platform/graphics/ContentDecryptionModule.h
index 0c044e7cd8edef2f8860c374d59f077e1e963816..3fe04049cfa01c43f71fa272f746f2bda190bc2d 100644
--- a/Source/modules/donottrack/NavigatorDoNotTrack.h
+++ b/Source/core/platform/graphics/ContentDecryptionModule.h
@@ -28,32 +28,35 @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-#ifndef NavigatorDoNotTrack_h
-#define NavigatorDoNotTrack_h
+#ifndef ContentDecryptionModule_h
+#define ContentDecryptionModule_h
 
-#include "core/page/DOMWindowProperty.h"
-#include "core/platform/Supplementable.h"
+#include "public/platform/WebContentDecryptionModule.h"
+#include "wtf/OwnPtr.h"
+#include "wtf/PassOwnPtr.h"
 #include "wtf/text/WTFString.h"
 
 namespace WebCore {
 
-class Frame;
-class Navigator;
+class ContentDecryptionModuleSession;
+class ContentDecryptionModuleSessionClient;
 
-class NavigatorDoNotTrack : public Supplement<Navigator>, public DOMWindowProperty {
+class ContentDecryptionModule {
 public:
-    virtual ~NavigatorDoNotTrack();
-    static NavigatorDoNotTrack* from(Navigator*);
+    static bool supportsKeySystem(const String&);
+    static PassOwnPtr<ContentDecryptionModule> create(const String& keySystem);
 
-    static String doNotTrack(Navigator*);
+    ContentDecryptionModule(PassOwnPtr<WebKit::WebContentDecryptionModule>);
+    ~ContentDecryptionModule();
 
-    String doNotTrack();
+    // ContentDecryptionModule
+    bool supportsMIMEType(const String&);
+    PassOwnPtr<ContentDecryptionModuleSession> createSession(ContentDecryptionModuleSessionClient*);
 
 private:
-    explicit NavigatorDoNotTrack(Frame*);
-    static const char* supplementName();
+    OwnPtr<WebKit::WebContentDecryptionModule> m_cdm;
 };
 
 } // namespace WebCore
 
-#endif // NavigatorDoNotTrack_h
+#endif // ContentDecryptionModule_h