Upstream Chrome on iOS source code [10/11].

ios/chrome/browser/ui/webui/chrome_web_ui_ios_controller_factory.h

Index: ios/chrome/browser/ui/webui/chrome_web_ui_ios_controller_factory.h
diff --git a/ios/chrome/browser/ui/webui/chrome_web_ui_ios_controller_factory.h b/ios/chrome/browser/ui/webui/chrome_web_ui_ios_controller_factory.h
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index 0000000000000000000000000000000000000000..50300972b04b2e31ecce252b8810208042535186
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+// 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.
+
+#ifndef IOS_CHROME_BROWSER_UI_WEBUI_CHROME_WEB_UI_IOS_CONTROLLER_FACTORY_H_
+#define IOS_CHROME_BROWSER_UI_WEBUI_CHROME_WEB_UI_IOS_CONTROLLER_FACTORY_H_
+
+#include <vector>
+
+#include "base/macros.h"
+#include "base/memory/singleton.h"
+#include "components/favicon_base/favicon_callback.h"
+#include "ios/web/public/webui/web_ui_ios.h"
+#include "ios/web/public/webui/web_ui_ios_controller_factory.h"
+#include "ui/base/layout.h"
+
+namespace base {
+class RefCountedMemory;
+}
+
+namespace ios {
+class ChromeBrowserState;
+}
+
+class GURL;
+
+class ChromeWebUIIOSControllerFactory : public web::WebUIIOSControllerFactory {
+ public:
+  web::WebUIIOSController* CreateWebUIIOSControllerForURL(
+      web::WebUIIOS* web_ui,
+      const GURL& url) const override;
+
+  static ChromeWebUIIOSControllerFactory* GetInstance();
+
+  // Get the favicon for |page_url| and run |callback| with result when loaded.
+  // Note. |callback| is always run asynchronously.
+  void GetFaviconForURL(
+      ios::ChromeBrowserState* browser_state,
+      const GURL& page_url,
+      const std::vector<int>& desired_sizes_in_pixel,
+      const favicon_base::FaviconResultsCallback& callback) const;
+
+ protected:
+  ChromeWebUIIOSControllerFactory();
+  ~ChromeWebUIIOSControllerFactory() override;
+
+ private:
+  friend struct base::DefaultSingletonTraits<ChromeWebUIIOSControllerFactory>;
+
+  // Gets the data for the favicon for a WebUIIOS page. Returns nullptr if the
+  // WebUIIOS does not have a favicon.
+  // The returned favicon data must be |gfx::kFaviconSize| x |gfx::kFaviconSize|
+  // DIP. GetFaviconForURL() should be updated if this changes.
+  base::RefCountedMemory* GetFaviconResourceBytes(
+      const GURL& page_url,
+      ui::ScaleFactor scale_factor) const;
+
+  DISALLOW_COPY_AND_ASSIGN(ChromeWebUIIOSControllerFactory);
+};
+
+#endif  // IOS_CHROME_BROWSER_UI_WEBUI_CHROME_WEB_UI_IOS_CONTROLLER_FACTORY_H_