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/runtime/proxy_test.cc b/runtime/proxy_test.cc
index 093c129..57eb3f7 100644
--- a/runtime/proxy_test.cc
+++ b/runtime/proxy_test.cc
@@ -14,12 +14,13 @@
  * limitations under the License.
  */
 
-#include "common_compiler_test.h"
-#include "mirror/art_field-inl.h"
-
 #include <jni.h>
 #include <vector>
 
+#include "common_compiler_test.h"
+#include "mirror/art_field-inl.h"
+#include "scoped_thread_state_change.h"
+
 namespace art {
 
 class ProxyTest : public CommonCompilerTest {