Move arc_intent_helper_bridge.h from c/b/chromeos/ to components/

chrome/browser/chromeos/arc/arc_settings_service.h

+// Copyright (c) 2015 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_CHROMEOS_ARC_ARC_SETTINGS_SERVICE_H_
+#define CHROME_BROWSER_CHROMEOS_ARC_ARC_SETTINGS_SERVICE_H_
+
+#include "base/macros.h"
+#include "base/memory/scoped_ptr.h"
+#include "components/arc/arc_bridge_service.h"
+#include "components/arc/arc_service.h"
+
+namespace arc {
+
+class ArcSettingsServiceImpl;
+
+namespace fontsizes {
+
+// The following values were obtained from chrome://settings and Android's
+// Display settings on Nov 2015. They are expected to remain stable.
+const float kAndroidFontScaleSmall = 0.85;
+const float kAndroidFontScaleNormal = 1;
+const float kAndroidFontScaleLarge = 1.15;
+const float kAndroidFontScaleHuge = 1.3;
+const int kChromeFontSizeNormal = 16;
+const int kChromeFontSizeLarge = 20;
+const int kChromeFontSizeVeryLarge = 24;
+
+// Android has only a single float value for system-wide font size
+// (font_scale).  Chrome has three main int pixel values that affect
+// system-wide font size.  We will take the largest font value of the three
+// main font values on Chrome and convert to an Android size.
+double ConvertFontSizeChromeToAndroid(int default_size,
+                                      int default_fixed_size,
+                                      int minimum_size);
+
+}  // namespace fontsizes
+
+class ArcSettingsService : public ArcService,
+                           public ArcBridgeService::Observer {
+ public:
+  explicit ArcSettingsService(ArcBridgeService* bridge_service);
+  ~ArcSettingsService() override;
+
+  // ArcBridgeService::Observer
+  void OnIntentHelperInstanceReady() override;
+  void OnIntentHelperInstanceClosed() override;
+
+ private:
+  scoped_ptr<ArcSettingsServiceImpl> impl_;
+
+  DISALLOW_COPY_AND_ASSIGN(ArcSettingsService);
+};
+
+}  // namespace arc
+
+#endif  // CHROME_BROWSER_CHROMEOS_ARC_ARC_SETTINGS_SERVICE_H_