Makes tests either use mock compositor or mock WebGraphicsContext3D

ui/aura_shell/test_suite.cc

Index: ui/aura_shell/test_suite.cc
diff --git a/ui/aura_shell/test_suite.cc b/ui/aura_shell/test_suite.cc
index d1168b9feae52d47109786448d14cddba288e600..3c1eab99b9c0168ddb6ee681cc5b5f2a2509771d 100644
--- a/ui/aura_shell/test_suite.cc
+++ b/ui/aura_shell/test_suite.cc
@@ -11,7 +11,12 @@
 #include "ui/base/ui_base_paths.h"
 #include "ui/gfx/compositor/test/compositor_test_support.h"
 #include "ui/gfx/gfx_paths.h"
+
+#if defined(USE_WEBKIT_COMPOSITOR)
+#include "ui/gfx/compositor/compositor_setup.h"
+#else
 #include "ui/gfx/test/gfx_test_utils.h"
+#endif
 
 namespace aura_shell {
 namespace test {
@@ -29,7 +34,11 @@ void AuraShellTestSuite::Initialize() {
   // output, it'll pass regardless of the system language.
   ui::ResourceBundle::InitSharedInstance("en-US");
   ui::CompositorTestSupport::Initialize();
+#if defined(USE_WEBKIT_COMPOSITOR)
+  ui::SetupTestCompositor();
+#else
   ui::gfx_test_utils::SetupTestCompositor();
+#endif
 }
 
 void AuraShellTestSuite::Shutdown() {