Android support

To use the Chromium toolchain out-of-the-box,
it seems like an All target is needed by default.

To compile using the Android tools:
1. add ;target_os=['android'] to your .gclient
2. gclient sync --nohooks
3. from your trunk dir, run:
   source build/android/envsetup.sh
4. gclient runhooks
5. ninja -C out/Release

BUG=libyuv:288
R=wuwang@google.com

Review URL: https://webrtc-codereview.appspot.com/4119007

git-svn-id: http://libyuv.googlecode.com/svn/trunk@873 16f28f9a-4ce2-e073-06de-1de4eb20be90

README.chromium

 Name: libyuv
 URL: http://code.google.com/p/libyuv/
-Version: 871
+Version: 873
 License: BSD
 License File: LICENSE
 

all.gyp

+# Copyright 2013 The LibYuv Project Authors. All rights reserved.
+#
+# Use of this source code is governed by a BSD-style license
+# that can be found in the LICENSE file in the root of the source
+# tree. An additional intellectual property rights grant can be found
+# in the file PATENTS. All contributing project authors may
+# be found in the AUTHORS file in the root of the source tree.
+
+# all.gyp and All target are for benefit of android gyp build.
+{
+  'targets': [
+    {
+      'target_name': 'All',
+      'type': 'none',
+      'dependencies': [
+        'libyuv.gyp:*',
+        'libyuv_test.gyp:*',
+      ],
+    },
+  ],
+}

include/libyuv/version.h

@@ -11,6 +11,6 @@
 #ifndef INCLUDE_LIBYUV_VERSION_H_  // NOLINT
 #define INCLUDE_LIBYUV_VERSION_H_
 
-#define LIBYUV_VERSION 871
+#define LIBYUV_VERSION 873
 
 #endif  // INCLUDE_LIBYUV_VERSION_H_  NOLINT