SkTypes.h : move SkAutoMalloc into SkAutoMalloc.h

  * SkAutoFree moved to SkTemplates.h (now implmented with unique_ptr).

  * SkAutoMalloc and SkAutoSMalloc moved to SkAutoMalloc.h

  * "SkAutoFree X(sk_malloc_throw(N));" --> "SkAutoMalloc X(N);"

Revert "Revert 'SkTypes.h : move SkAutoMalloc into SkAutoMalloc.h'"
This reverts commit c456b73fef9589bbdc5eb83eaa83e53c357bb3da.

Change-Id: Ie2c1a17c20134b8ceab85a68b3ae3e61c24fbaab
Reviewed-on: https://skia-review.googlesource.com/6886
Reviewed-by: Hal Canary <halcanary@google.com>
Commit-Queue: Hal Canary <halcanary@google.com>
diff --git a/tests/CodecTest.cpp b/tests/CodecTest.cpp
index 01e9cc4..0f6d54c 100644
--- a/tests/CodecTest.cpp
+++ b/tests/CodecTest.cpp
@@ -8,18 +8,19 @@
 #include "FakeStreams.h"
 #include "Resources.h"
 #include "SkAndroidCodec.h"
+#include "SkAutoMalloc.h"
 #include "SkBitmap.h"
 #include "SkCodec.h"
 #include "SkCodecImageGenerator.h"
 #include "SkColorSpace_XYZ.h"
 #include "SkData.h"
-#include "SkImageEncoder.h"
 #include "SkFrontBufferedStream.h"
+#include "SkImageEncoder.h"
 #include "SkMD5.h"
+#include "SkPngChunkReader.h"
 #include "SkRandom.h"
 #include "SkStream.h"
 #include "SkStreamPriv.h"
-#include "SkPngChunkReader.h"
 #include "Test.h"
 
 #include "png.h"