Commit 3c6344e7ad0fa7353b0a9d178992a2729dc24455

Al Patrick 2013-09-23T14:57:00

add TRACE_EVENT to ANGLE (reland) Tracing code the same as previous CL: https://codereview.appspot.com/12699047/ Setup code simplified, and follows the GetProcAddress model of other gl functions. R=shannonwoods@google.com