Rename gl::Data to gl::ContextState.

Part of the new world order of renaming the Obj::Data classes to ObjState.

BUG=angleproject:1363

Change-Id: I15cf002b8b093d687f540b9e86f045874af24a7e
Reviewed-on: https://chromium-review.googlesource.com/340740
Reviewed-by: Geoff Lang <geofflang@chromium.org>
Commit-Queue: Jamie Madill <jmadill@chromium.org>
diff --git a/src/libANGLE/validationES_unittest.cpp b/src/libANGLE/validationES_unittest.cpp
index 5766c5f..a1ab029 100644
--- a/src/libANGLE/validationES_unittest.cpp
+++ b/src/libANGLE/validationES_unittest.cpp
@@ -10,7 +10,7 @@
 #include <gmock/gmock.h>
 #include <gtest/gtest.h>
 
-#include "libANGLE/Data.h"
+#include "libANGLE/ContextState.h"
 #include "libANGLE/renderer/FramebufferImpl_mock.h"
 #include "libANGLE/renderer/ProgramImpl_mock.h"
 #include "libANGLE/renderer/TextureImpl_mock.h"