Fix for b/4198446 HC - Support for Widevine Adaptive VOD

Fix for b/4075745 libWVStreamControlAPI crashes when dlopened() and dlclosed()
Added error logging to diagnose problems such as b/4430078 Playback of newly rented
    movie fails with "license expired"

Includes Widevine library build Version 4.5.0.3682

Change-Id: I5708bb3fb92f05a3dd1768620157a795ccebd57a

proprietary/drmwvmplugin/test/TestPlugin.cpp

@@ -84,11 +84,17 @@ void WVMDrmPluginTest::Run()
         exit(-1);
     }
 
-    // Remote asset
+
     String8 url;
+
+    // Remote asset
     url = String8("http://seawwws001.cdn.shibboleth.tv/videos/qa/adventures_d_ch_444169.wvm");
     TestAsset(plugin, url);
 
+    // Remote asset using widevine:// protocol
+    url = String8("widevine://seawwws001.cdn.shibboleth.tv/videos/qa/adventures_d_ch_444169.wvm");
+    TestAsset(plugin, url);
+
     // Local asset
     url = String8("file:///sdcard/Widevine/trailers_d_ch_444169.wvm");
     TestAsset(plugin, url);