Plumb resize notifications around sky/shell

sky/shell/gpu/rasterizer.h

Index: sky/shell/gpu/rasterizer.h
diff --git a/sky/shell/gpu/rasterizer.h b/sky/shell/gpu/rasterizer.h
index 302e38d9e3c7b28ca7e21e6f164bdab1d382ff4b..3bb253dd79ef114b3caf142de209c81eb2e77c33 100644
--- a/sky/shell/gpu/rasterizer.h
+++ b/sky/shell/gpu/rasterizer.h
@@ -8,6 +8,7 @@
 #include "base/memory/ref_counted.h"
 #include "base/memory/weak_ptr.h"
 #include "skia/ext/refptr.h"
+#include "sky/shell/gpu_delegate.h"
 #include "ui/gfx/geometry/size.h"
 #include "ui/gfx/native_widget_types.h"
 
@@ -24,14 +25,16 @@ namespace shell {
 class GaneshContext;
 class GaneshSurface;
 
-class Rasterizer {
+class Rasterizer : public GPUDelegate {
  public:
   explicit Rasterizer();
   ~Rasterizer();
 
   base::WeakPtr<Rasterizer> GetWeakPtr();
 
-  void Init(gfx::AcceleratedWidget widget);
+  void OnAcceleratedWidgetAvailable(gfx::AcceleratedWidget widget) override;
+  void OnDestroyed() override;

[eseidel, 2015/02/05 05:57:28]

Isn't the pattern typically OnGPUDestroyed() so that we don't collide when
things are both a GPUDelegate and a FooDelegate?

[abarth-chromium, 2015/02/05 06:16:23]

Good idea.

[abarth-chromium, 2015/02/05 06:16:23]

Good idea.

+
   void Draw(skia::RefPtr<SkPicture> picture);
 
  private: