Change ui::wm::Shadow to use cc::NinePatchLayer.

ui/compositor/layer.cc

Index: ui/compositor/layer.cc
diff --git a/ui/compositor/layer.cc b/ui/compositor/layer.cc
index c1767422163a523d837632b6183a6100b5dab2cc..1450b15e6dde85387e66a21a2ff903bdfdb85cf0 100644
--- a/ui/compositor/layer.cc
+++ b/ui/compositor/layer.cc
@@ -14,6 +14,7 @@
 #include "cc/base/scoped_ptr_algorithm.h"
 #include "cc/layers/content_layer.h"
 #include "cc/layers/delegated_renderer_layer.h"
+#include "cc/layers/nine_patch_layer.h"
 #include "cc/layers/picture_layer.h"
 #include "cc/layers/solid_color_layer.h"
 #include "cc/layers/texture_layer.h"
@@ -583,6 +584,18 @@ void Layer::SetShowPaintedContent() {
   RecomputeDrawsContentAndUVRect();
 }
 
+void Layer::UpdateNinePatchLayer(const SkBitmap& bitmap,
+                                 const gfx::Rect& aperture,
+                                 const gfx::Rect& border) {
+  DCHECK(nine_patch_layer_.get());
+  if (!nine_patch_layer_.get())

[danakj, 2014/07/15 17:53:34]

You DCHECK'd this won't happen, so please don't try to handle it with code also.

[sky, 2014/07/15 17:55:18]

It would also be nice if you could dcheck on the type_.

[hshi1, 2014/07/15 18:16:39]

Done.

[hshi1, 2014/07/15 18:16:39]

Done.

+    return;
+
+  nine_patch_layer_->SetBitmap(bitmap);
+  nine_patch_layer_->SetAperture(aperture);
+  nine_patch_layer_->SetBorder(border);
+}
+
 void Layer::SetColor(SkColor color) { GetAnimator()->SetColor(color); }
 
 bool Layer::SchedulePaint(const gfx::Rect& invalid_rect) {
@@ -927,6 +940,9 @@ void Layer::CreateWebLayer() {
   if (type_ == LAYER_SOLID_COLOR) {
     solid_color_layer_ = cc::SolidColorLayer::Create();
     cc_layer_ = solid_color_layer_.get();
+  } else if (type_ == LAYER_NINE_PATCH) {
+    nine_patch_layer_ = cc::NinePatchLayer::Create();
+    cc_layer_ = nine_patch_layer_.get();
   } else {
     if (Layer::UsingPictureLayer())
       content_layer_ = cc::PictureLayer::Create(this);