Implement a bluetooth picker dialog for Android

chrome/browser/ui/android/bluetooth_chooser_android.h

+// Copyright 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_UI_ANDROID_BLUETOOTH_CHOOSER_ANDROID_H_
+#define CHROME_BROWSER_UI_ANDROID_BLUETOOTH_CHOOSER_ANDROID_H_
+
+#include "base/android/scoped_java_ref.h"
+#include "content/public/browser/bluetooth_chooser.h"
+#include "content/public/browser/web_contents.h"
+
+// Represents a way to ask the user to select a Bluetooth device from a list of
+// options.
+class BluetoothChooserAndroid : public content::BluetoothChooser {
+ public:
+  BluetoothChooserAndroid(content::WebContents* web_contents,
+                          const EventHandler& event_handler,
+                          const GURL& origin);
+  ~BluetoothChooserAndroid() override;
+
+  // content::BluetoothChooser:
+  void SetAdapterPresence(AdapterPresence presence) override;
+  void ShowDiscoveryState(DiscoveryState state) override;
+  void AddDevice(const std::string& device_id,
+                 const base::string16& device_name) override;
+  void RemoveDevice(const std::string& device_id) override;
+
+  // Report which device was selected (device_id).
+  void ReportDeviceSelected(JNIEnv* env, jobject obj, jstring device_id);

[newt (away), 2015/09/01 21:51:23]

Suggestion: "Report" doesn't seem to add much meaning to these method names. how
about calling this method "OnDeviceSelected()" and the following method
"RestartSearch()"?

[Finnur, 2015/09/02 16:01:43]

Works for me!

+
+  // Notify bluetooth stack that the search needs to be re-issued.
+  void ReportRestartSearch(JNIEnv* env, jobject obj);
+
+  void ShowBluetoothOverviewLink(JNIEnv* env, jobject obj);
+  void ShowBluetoothPairingLink(JNIEnv* env, jobject obj);
+  void ShowBluetoothAdapterOffLink(JNIEnv* env, jobject obj);
+
+  static bool Register(JNIEnv* env);
+
+ private:
+  base::android::ScopedJavaGlobalRef<jobject> java_dialog_;
+
+  EventHandler event_handler_;

[newt (away), 2015/09/01 21:51:23]

Can you add "BluetoothChooser::" here to make it clearer where this EventHandler
class is coming from?

[Finnur, 2015/09/02 16:01:43]

Sure!

+
+  content::WebContents* web_contents_;
+};
+
+#endif  // CHROME_BROWSER_UI_ANDROID_BLUETOOTH_CHOOSER_ANDROID_H_