fix [3028370] GL get error should return a valid error if no context is bound.
fix [3028370] GL get error should return a valid error if no context is bound.

glGetError() will now always return GL_INVALID_OPERATION if called from a thread
with no GL context bound.

Change-Id: I28ba458871db051bb4f5a26668a1fa123526869c

xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base