Use high resolution icons where possible for streamlined hosted app icons.

chrome/browser/ui/web_applications/hosted_app_tab_helper_delegate.h

Index: chrome/browser/ui/web_applications/hosted_app_tab_helper_delegate.h
diff --git a/chrome/browser/ui/web_applications/hosted_app_tab_helper_delegate.h b/chrome/browser/ui/web_applications/hosted_app_tab_helper_delegate.h
new file mode 100644
index 0000000000000000000000000000000000000000..dda613076de60acc1fb1a6333417440b96766213
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+++ b/chrome/browser/ui/web_applications/hosted_app_tab_helper_delegate.h
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+// 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.
+
+#ifndef CHROME_BROWSER_UI_WEB_APPLICATIONS_HOSTED_APP_TAB_HELPER_DELEGATE_H_
+#define CHROME_BROWSER_UI_WEB_APPLICATIONS_HOSTED_APP_TAB_HELPER_DELEGATE_H_
+
+namespace content {
+class WebContents;
+}
+
+// Objects implement this interface to get notified about changes in the
+// HostedAppTabHelper and to provide necessary functionality.
+class HostedAppTabHelperDelegate {
+ public:
+  // Notification that the window icon has been loaded.
+  virtual void OnWindowIconLoaded(content::WebContents* source) = 0;
+
+ protected:
+  virtual ~HostedAppTabHelperDelegate() {}
+};
+
+#endif  // CHROME_BROWSER_UI_WEB_APPLICATIONS_HOSTED_APP_TAB_HELPER_DELEGATE_H_