Add HWUI Sink to DM on Android Framework builds

dm/DMSrcSinkAndroid.h

+/*
+ * Copyright 2015 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#ifndef DMSrcSinkAndroid_DEFINED
+#define DMSrcSinkAndroid_DEFINED
+
+#ifdef SK_BUILD_FOR_ANDROID_FRAMEWORK
+
+#include "DMSrcSink.h"
+
+namespace DM {
+
+/*~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~*/
+
+class HWUISink : public Sink {
+public:
+    HWUISink() { }
+
+    Error draw(const Src&, SkBitmap*, SkWStream*, SkString*) const SK_OVERRIDE;
+    int enclave() const SK_OVERRIDE { return kGPU_Enclave; }
+    const char* fileExtension() const SK_OVERRIDE { return "png"; }
+
+private:
+    const float kDensity = 1.0f;
+    inline float dp(int x) const { return x * kDensity; }
+};
+
+/*~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~*/
+
+}  // namespace DM
+
+#endif  // SK_BUILD_FOR_ANDROID_FRAMEWORK
+
+#endif  // DMSrcSinkAndroid_DEFINED