Reland: Allow high-res bitmaps to be passed in from notifications API.

chrome/renderer/extensions/notifications_native_handler.cc

+// Copyright 2013 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 "chrome/renderer/extensions/notifications_native_handler.h"
+
+#include <string>
+
+#include "base/logging.h"
+#include "base/values.h"
+#include "chrome/common/extensions/api/notifications/notification_style.h"
+#include "chrome/renderer/extensions/chrome_v8_context.h"
+#include "content/public/renderer/v8_value_converter.h"
+#include "ui/base/layout.h"
+
+namespace extensions {
+
+NotificationsNativeHandler::NotificationsNativeHandler(ScriptContext* context)
+    : ObjectBackedNativeHandler(context) {
+  RouteFunction(
+      "GetNotificationImageSizes",
+      base::Bind(&NotificationsNativeHandler::GetNotificationImageSizes,
+                 base::Unretained(this)));
+}
+
+void NotificationsNativeHandler::GetNotificationImageSizes(
+    const v8::FunctionCallbackInfo<v8::Value>& args) {
+  NotificationBitmapSizes bitmap_sizes = NotificationBitmapSizes();
+
+  float scale_factor =
+      ui::GetScaleForScaleFactor(ui::GetSupportedScaleFactors().back());
+
+  scoped_ptr<base::DictionaryValue> dict(new base::DictionaryValue);
+  dict->SetDouble("scaleFactor", scale_factor);
+  dict->SetInteger("icon.width", bitmap_sizes.icon_size.width());
+  dict->SetInteger("icon.height", bitmap_sizes.icon_size.height());
+  dict->SetInteger("image.width", bitmap_sizes.image_size.width());
+  dict->SetInteger("image.height", bitmap_sizes.image_size.height());
+  dict->SetInteger("buttonIcon.width", bitmap_sizes.button_icon_size.width());
+  dict->SetInteger("buttonIcon.height", bitmap_sizes.button_icon_size.height());
+
+  scoped_ptr<content::V8ValueConverter> converter(
+      content::V8ValueConverter::create());
+  args.GetReturnValue().Set(
+      converter->ToV8Value(dict.get(), context()->v8_context()));
+}
+
+}  // namespace extensions