cc: Add drawing for testing raster perf tests.

cc/playback/picture_pile_impl_perftest.cc

Index: cc/playback/picture_pile_impl_perftest.cc
diff --git a/cc/playback/picture_pile_impl_perftest.cc b/cc/playback/picture_pile_impl_perftest.cc
index e1560400f22cea8e93023cce74d7ea2176262e33..31e6a56593cba0ff5185d963b695a166e908b40a 100644
--- a/cc/playback/picture_pile_impl_perftest.cc
+++ b/cc/playback/picture_pile_impl_perftest.cc
@@ -6,6 +6,7 @@
 
 #include "cc/debug/lap_timer.h"
 #include "cc/test/fake_picture_pile_impl.h"
+#include "cc/test/skia_common.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "testing/perf/perf_test.h"
 
@@ -43,14 +44,24 @@ class PicturePileImplPerfTest : public testing::Test {
         "analyze", "", test_name, timer_.LapsPerSecond(), "runs/s", true);
   }
 
-  void RunRasterTest(const std::string& test_name, float contents_scale) {
-    scoped_refptr<PicturePileImpl> pile = FakePicturePileImpl::CreateFilledPile(
-        gfx::Size(kTileSize, kTileSize), gfx::Size(kLayerSize, kLayerSize));
-    // Content rect that will align with top-left tile at scale 1.0.
-    gfx::Rect content_rect(0, 0, kTileSize, kTileSize);
+  void RunRasterTest(const std::string& test_name,
+                     float contents_scale,
+                     const gfx::Size& tile_size,
+                     const gfx::Size& layer_bounds,
+                     const gfx::Size& drawing_size,
+                     int drawing_iterations) {
+    scoped_ptr<FakePicturePile> drawing =
+        FakePicturePile::CreateFilledPile(tile_size, layer_bounds);
+    // Content rect that will align with given layer at scale 1.0.
+    gfx::Rect content_rect(0, 0, layer_bounds.width(), layer_bounds.height());
+
+    AddDrawing(drawing.get(), drawing_size, drawing_iterations);
+
+    scoped_refptr<PicturePileImpl> pile =
+        FakePicturePileImpl::CreateFromPile(drawing.get(), nullptr);
 
     SkBitmap bitmap;
-    bitmap.allocN32Pixels(1, 1);
+    bitmap.allocN32Pixels(layer_bounds.width(), layer_bounds.height());
     SkCanvas canvas(bitmap);
 
     timer_.Reset();
@@ -64,6 +75,51 @@ class PicturePileImplPerfTest : public testing::Test {
         "raster", "", test_name, timer_.LapsPerSecond(), "runs/s", true);
   }
 
+  void AddDrawing(FakePicturePile* drawing,
+                  const gfx::Size& drawing_size,
+                  int drawing_iterations) {
+    if ((drawing_iterations <= 0) || drawing_size.IsEmpty())
+      return;
+
+    int x_pos = 0;
+    int y_pos = 0;
+    int width = drawing_size.width();
+    int height = drawing_size.height();
+    int color = 0;
+
+    // Create full drawing size bitmap so that it will cover the all tiles
+    // needed for given drawing size.
+    SkBitmap bitmap;
+    CreateBitmap(gfx::Size(width, height), "bitmap", &bitmap);
+    // TODO(prashant.n): Initialize bitmpa pixels, so that every test run gets
+    // same bitmap data.
+
+    SkPaint paint;
+
+    for (int i = 0; i < drawing_iterations; ++i) {
+      // Delimit location in drawing size area so that something gets drawn on
+      // the layer.
+      x_pos = ++x_pos % drawing_size.width();
+      y_pos = ++y_pos % drawing_size.height();
+      width = (--width) ? width : drawing_size.width();
+      height = (--height) ? height : drawing_size.height();
+      color = ++color % 255;
+      paint.setColor(SkColorSetARGB(color, color, color, color));
+      gfx::Rect rect(x_pos, y_pos, width, height);
+      drawing->add_draw_rect_with_paint(rect, paint);
+      drawing->add_draw_bitmap_with_paint(bitmap, gfx::Point(x_pos, y_pos),
+                                          paint);
+    }
+
+    // Record again.
+    for (int x = 0; x < drawing->tiling().num_tiles_x(); ++x) {
+      for (int y = 0; y < drawing->tiling().num_tiles_y(); ++y) {
+        drawing->RemoveRecordingAt(x, y);
+        drawing->AddRecordingAt(x, y);
+      }
+    }
+  }
+
  private:
   LapTimer timer_;
 };
@@ -75,9 +131,20 @@ TEST_F(PicturePileImplPerfTest, Analyze) {
 }
 
 TEST_F(PicturePileImplPerfTest, Raster) {
-  RunRasterTest("1", 1.0f);
-  RunRasterTest("4", 0.5f);
-  RunRasterTest("100", 0.1f);
+  gfx::Size tile_size(kTileSize, kTileSize);
+  gfx::Size layer_bounds(kLayerSize, kLayerSize);
+
+  RunRasterTest("1", 1.0f, tile_size, layer_bounds, layer_bounds, 0);
+  RunRasterTest("4", 0.5f, tile_size, layer_bounds, layer_bounds, 0);
+  RunRasterTest("100", 0.1f, tile_size, layer_bounds, layer_bounds, 0);
+
+  RunRasterTest("1_1", 1.0f, tile_size, layer_bounds, layer_bounds, 1);
+  RunRasterTest("4_1", 0.5f, tile_size, layer_bounds, layer_bounds, 1);
+  RunRasterTest("100_1", 0.1f, tile_size, layer_bounds, layer_bounds, 1);
+
+  RunRasterTest("1_64", 1.0f, tile_size, layer_bounds, layer_bounds, 64);
+  RunRasterTest("4_64", 0.5f, tile_size, layer_bounds, layer_bounds, 64);
+  RunRasterTest("100_64", 0.1f, tile_size, layer_bounds, layer_bounds, 64);
 }
 
 }  // namespace