Move avatar holder code to ash

ash/frame/frame_util.cc

Index: ash/frame/frame_util.cc
diff --git a/ash/frame/frame_util.cc b/ash/frame/frame_util.cc
new file mode 100644
index 0000000000000000000000000000000000000000..bfa8c33548608c76c900bdc7d24a2a27690924b7
--- /dev/null
+++ b/ash/frame/frame_util.cc
@@ -0,0 +1,35 @@
+// Copyright 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "ash/frame/frame_util.h"
+
+#include "ash/session_state_delegate.h"
+#include "ash/shell.h"
+#include "grit/ash_resources.h"
+#include "ui/base/resource/resource_bundle.h"
+#include "ui/gfx/image/image_skia.h"
+#include "ui/gfx/image/image_skia_operations.h"
+
+namespace ash {
+
+gfx::Image GetAvatarImageForContext(content::BrowserContext* context) {
+  static const gfx::ImageSkia* holder =
+      ui::ResourceBundle::GetSharedInstance().GetImageSkiaNamed(
+          IDR_AVATAR_HOLDER);
+  static const gfx::ImageSkia* holder_mask =
+      ui::ResourceBundle::GetSharedInstance().GetImageSkiaNamed(
+          IDR_AVATAR_HOLDER_MASK);
+  gfx::ImageSkia user_image =
+      Shell::GetInstance()->session_state_delegate()->GetUserImage(context);
+  gfx::ImageSkia resized = gfx::ImageSkiaOperations::CreateResizedImage(
+      user_image, skia::ImageOperations::RESIZE_BEST, holder->size());
+  gfx::ImageSkia masked =
+      gfx::ImageSkiaOperations::CreateMaskedImage(resized, *holder_mask);
+  gfx::ImageSkia result =
+      gfx::ImageSkiaOperations::CreateSuperimposedImage(*holder, masked);
+  return gfx::Image(result);
+}
+
+}  // namespace ash
+