Move HWUI boilerplate into utils/android

src/utils/android/SkHwuiRenderer.h

Index: src/utils/android/SkHwuiRenderer.h
diff --git a/bench/nanobenchAndroid.h b/src/utils/android/SkHwuiRenderer.h
similarity index 56%
copy from bench/nanobenchAndroid.h
copy to src/utils/android/SkHwuiRenderer.h
index 3baeb1270fb5794a6e6a87e9fb1c7a8b806377d5..2e1ce4ebe83d4762712153fae192688afbccb3fb 100644
--- a/bench/nanobenchAndroid.h
+++ b/src/utils/android/SkHwuiRenderer.h
@@ -5,24 +5,21 @@
  * found in the LICENSE file.
  */
 
-#ifndef nanobenchAndroid_DEFINED
-#define nanobenchAndroid_DEFINED
+#ifndef SkHwuiRenderer_DEFINED
+#define SkHwuiRenderer_DEFINED
 
 #include "DisplayListRenderer.h"
 #include "RenderNode.h"
-#include "SkAndroidSDKCanvas.h"
-#include "gui/BufferQueue.h"
+#include "SkTypes.h"
 #include "gui/CpuConsumer.h"
 #include "gui/IGraphicBufferConsumer.h"
 #include "gui/IGraphicBufferProducer.h"
 #include "gui/Surface.h"
 #include "renderthread/RenderProxy.h"
 
-#include "nanobench.h"
-
-struct HWUITarget : public Target {
-    explicit HWUITarget(const Config& c, Benchmark* bench);
+class SkBitmap;
 
+struct SkHwuiRenderer {
     SkAutoTDelete<android::uirenderer::RenderNode> rootNode;
     SkAutoTDelete<android::uirenderer::renderthread::RenderProxy> proxy;
     SkAutoTDelete<android::uirenderer::DisplayListRenderer> renderer;
@@ -31,19 +28,15 @@ struct HWUITarget : public Target {
     android::sp<android::CpuConsumer> cpuConsumer;
     android::sp<android::Surface> androidSurface;
     SkISize size;
-    SkAndroidSDKCanvas fc;
 
-    void setup() override;
-    SkCanvas* beginTiming(SkCanvas* canvas) override;
-    void endTiming() override;
-    void fence() override;
-    bool needsFrameTiming() const override;
+    void initialize(SkISize size);
 
-    /// Returns false if initialization fails
-    bool init(SkImageInfo info, Benchmark* bench) override;
-    bool capturePixels(SkBitmap* bmp) override;
-};
+    /// Returns a canvas to draw into.
+    SkCanvas* prepareToDraw();
 
+    void finishDrawing();
 
+    bool capturePixels(SkBitmap* bmp);
+};
 
-#endif  // nanobenchAndroid_DEFINED
+#endif  // SkHwuiRenderer_DEFINED