Move SkBitmapRegionDecoder to include/android and src/android

gyp/codec_android.gyp

+# Copyright 2015 Google Inc.
+#
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+# Copyright 2015 Google Inc.
+#
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+# GYP file for android specific codecs.
+{
+  'targets': [
+    {
+      'target_name': 'codec_android',
+      'product_name': 'skia_codec_android',
+      'type': 'static_library',
+      'standalone_static_library': 1,
+      'dependencies': [
+        'codec.gyp:codec',
+      ],
+      'include_dirs': [
+        '../include/android',
+        '../include/config',
+        '../include/core',
+        '../include/private',
+        '../src/android',
+        '../src/codec',
+      ],
+      'sources': [
+        '../src/android/SkBitmapRegionCanvas.cpp',
+        '../src/android/SkBitmapRegionCodec.cpp',
+        '../src/android/SkBitmapRegionDecoder.cpp',
+      ],
+      'direct_dependent_settings': {
+        'include_dirs': [
+          '../include/android',
+        ],
+      },
+    },
+  ],
+}