Break apart header files.

Create libart-gtest for common runtime and compiler gtest routines.
Rename CompilerCallbacksImpl that is quick compiler specific.
Rename trace clock source constants to not use the overloaded profiler term.

Change-Id: I4aac4bdc7e7850c68335f81e59a390133b54e933
diff --git a/compiler/output_stream_test.cc b/compiler/output_stream_test.cc
index 5fa0ccb..315ca09 100644
--- a/compiler/output_stream_test.cc
+++ b/compiler/output_stream_test.cc
@@ -17,6 +17,7 @@
 #include "file_output_stream.h"
 #include "vector_output_stream.h"
 
+#include "base/unix_file/fd_file.h"
 #include "base/logging.h"
 #include "buffered_output_stream.h"
 #include "common_runtime_test.h"