ozone: Plumb animated cursors from CursorLoaderOzone to CursorFactoryOzone

ui/base/cursor/cursor_loader_ozone.cc

Index: ui/base/cursor/cursor_loader_ozone.cc
diff --git a/ui/base/cursor/cursor_loader_ozone.cc b/ui/base/cursor/cursor_loader_ozone.cc
index 8309c2e4b2afc8e8e38cac4e5cd3eb249a8f37ff..7d1e1d279efa301a690758bae3b880feee79f090 100644
--- a/ui/base/cursor/cursor_loader_ozone.cc
+++ b/ui/base/cursor/cursor_loader_ozone.cc
@@ -4,9 +4,12 @@
 
 #include "ui/base/cursor/cursor_loader_ozone.h"
 
+#include <vector>
+
 #include "ui/base/cursor/cursor.h"
 #include "ui/base/resource/resource_bundle.h"
 #include "ui/gfx/image/image_skia.h"
+#include "ui/gfx/skbitmap_operations.h"
 #include "ui/ozone/public/cursor_factory_ozone.h"
 
 namespace ui {
@@ -31,8 +34,33 @@ void CursorLoaderOzone::LoadAnimatedCursor(int id,
                                            int resource_id,
                                            const gfx::Point& hot,
                                            int frame_delay_ms) {
-  // TODO(dnicoara) Add support: crbug.com/343245
-  NOTIMPLEMENTED();
+  const gfx::ImageSkia* image =
+      ResourceBundle::GetSharedInstance().GetImageSkiaNamed(resource_id);
+  const gfx::ImageSkiaRep& image_rep = image->GetRepresentation(scale());
+  SkBitmap bitmap = image_rep.sk_bitmap();
+  int frame_width = bitmap.height();
+  int frame_height = frame_width;
+  int total_width = bitmap.width();
+  DCHECK_EQ(total_width % frame_width, 0);
+  int frame_count = total_width / frame_width;
+  DCHECK_GT(frame_count, 0);
+
+  std::vector<SkBitmap> bitmaps(frame_count);
+
+  for (int frame = 0; frame < frame_count; ++frame) {
+    int x_offset = frame_width * frame;
+    DCHECK_LE(x_offset + frame_width, total_width);
+
+    SkBitmap cropped = SkBitmapOperations::CreateTiledBitmap(

[sky, 2014/09/04 21:23:12]

Please refactor this as it looks to be exactly the same as
CursorLoaderX11::LoadAnimatedCursor .

[spang, 2014/09/05 16:26:26]

Done.

+        bitmap, x_offset, 0, frame_width, frame_height);
+    DCHECK_EQ(frame_width, cropped.width());
+    DCHECK_EQ(frame_height, cropped.height());
+
+    bitmaps[frame] = cropped;
+  }
+
+  cursors_[id] = CursorFactoryOzone::GetInstance()->CreateAnimatedCursor(
+      bitmaps, hot, frame_delay_ms);
 }
 
 void CursorLoaderOzone::UnloadAll() {