Cleanup: Sanitize the order of includes under tests/

Initially this was to make sure Test.h appeared after the Sk*.h includes.

Patch generated by the following command line:

$ ~/chromium/src/tools/sort-headers.py tests/*.cpp

BUG=None
TEST=tests
R=robertphillips@google.com

Review URL: https://codereview.chromium.org/145313004

git-svn-id: http://skia.googlecode.com/svn/trunk@13177 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/tests/GrDrawTargetTest.cpp b/tests/GrDrawTargetTest.cpp
index 68f922f..c032d88 100644
--- a/tests/GrDrawTargetTest.cpp
+++ b/tests/GrDrawTargetTest.cpp
@@ -10,8 +10,8 @@
 
 #include "GrContext.h"
 #include "GrContextFactory.h"
-#include "GrGpu.h"
 #include "GrDrawTargetCaps.h"
+#include "GrGpu.h"
 #include "Test.h"
 
 static void test_print(skiatest::Reporter*, const GrDrawTargetCaps* caps) {