IWYU for test files starting with 'A'.

While testing some changes to iwyu, started fixing some files. Made it
to AsADashTest.cpp before running into
https://github.com/include-what-you-use/include-what-you-use/issues/364

Change-Id: I42b65df4f1f8116e0ea1b2cd774651990db1b132
Reviewed-on: https://skia-review.googlesource.com/111861
Reviewed-by: Ben Wagner <bungeman@google.com>
Reviewed-by: Herb Derby <herb@google.com>
Commit-Queue: Ben Wagner <bungeman@google.com>
diff --git a/tests/AndroidCodecTest.cpp b/tests/AndroidCodecTest.cpp
index d383713..430b0b7 100644
--- a/tests/AndroidCodecTest.cpp
+++ b/tests/AndroidCodecTest.cpp
@@ -5,15 +5,26 @@
  * found in the LICENSE file.
  */
 
+#include "Resources.h"
 #include "SkAndroidCodec.h"
+#include "SkBitmap.h"
 #include "SkCodec.h"
 #include "SkCodecImageGenerator.h"
+#include "SkColor.h"
+#include "SkData.h"
 #include "SkEncodedImageFormat.h"
+#include "SkImageGenerator.h"
+#include "SkImageInfo.h"
 #include "SkPixmapPriv.h"
-
-#include "Resources.h"
+#include "SkRefCnt.h"
+#include "SkSize.h"
+#include "SkString.h"
+#include "SkTypes.h"
 #include "Test.h"
 
+#include <algorithm>
+#include <memory>
+
 static SkISize times(const SkISize& size, float factor) {
     return { (int) (size.width() * factor), (int) (size.height() * factor) };
 }