Make unprefixed EME APIs use platform and Chromium.

public/platform/WebCDM.h

Index: public/platform/WebCDM.h
diff --git a/public/webview/WebMediaSource.h b/public/platform/WebCDM.h
similarity index 85%
copy from public/webview/WebMediaSource.h
copy to public/platform/WebCDM.h
index 424a687dfa381049240e769de9e23f58da6eb576..a1e0d48fdf80f8ffa9da2fc9e598504bf5585b07 100644
--- a/public/webview/WebMediaSource.h
+++ b/public/platform/WebCDM.h
@@ -28,22 +28,23 @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-#ifndef WebMediaSource_h
-#define WebMediaSource_h
+#ifndef WebCDM_h
+#define WebCDM_h
 
-#include "../platform/WebURL.h"
-#include "WebTimeRange.h"
+#include "public/platform/WebCDMSession.h"
 
 namespace WebKit {
 
-class WebMediaSourceClient;
+// Abstract interface to the Chromium CDMs.
 
-class WebMediaSource {
+class WebCDM {
 public:
-    virtual ~WebMediaSource() { };
-    virtual void open(WebMediaSourceClient*) = 0;
+    virtual ~WebCDM() { }
+
+    // Must return non-null.
+    virtual WebCDMSession* createSession(WebCDMSession::Client*) = 0;
 };
 
 } // namespace WebKit
 
-#endif
+#endif // WebCDM_h