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/GifTest.cpp b/tests/GifTest.cpp
index 7d5d56c..e2e0384 100644
--- a/tests/GifTest.cpp
+++ b/tests/GifTest.cpp
@@ -11,13 +11,13 @@
     (!defined(SK_BUILD_FOR_IOS)) &&             \
     (!defined(SK_BUILD_FOR_MAC))
 
-#include "Test.h"
 #include "SkBitmap.h"
 #include "SkData.h"
 #include "SkForceLinking.h"
 #include "SkImage.h"
 #include "SkImageDecoder.h"
 #include "SkStream.h"
+#include "Test.h"
 
 __SK_FORCE_IMAGE_DECODER_LINKING;