DO NOT MERGE

Add wrapper method for native JNI call.

This is to check whether a given mimeType is supported in Android media
framework.

issue: 3101402
Change-Id: Ic8b412c045c36113c830296dacb42ed5f7371c9d

core/java/android/webkit/WebViewCore.java

@@ -28,6 +28,7 @@ import android.graphics.Picture;
 import android.graphics.Point;
 import android.graphics.Rect;
 import android.graphics.Region;
+import android.media.MediaFile;
 import android.net.Uri;
 import android.os.Handler;
 import android.os.Looper;
@@ -255,6 +256,13 @@ final class WebViewCore {
         return mSettings;
     }
 
+    /*
+     * Given mimeType, check whether it's supported in Android media framework.
+     * mimeType could be such as "audio/ogg" and "video/mp4".
+     */
+    /* package */ static boolean supportsMimeType(String mimeType) {
+        return MediaFile.getFileTypeForMimeType(mimeType) > 0;
+    }
     /**
      * Add an error message to the client's console.
      * @param message The message to add