AudioService : Fix NPE

Initialize mVolumePanel prior to registering the receiver,
since 4.3 now invokes the layoutDirection call on it.

Change-Id: I8d00f0886b603d52bc55cba5fd3ba1d86f7ea56c
Merge "AudioService : Fix NPE" into cm-10.2
Revert "[webkit] Runtime enablement of WebGL"

 * No longer needed, WebGL is on by default if compiled in.

This reverts commit bcc8f733796f3fcd1c2180336960d747a6995f0c.