Add the Physical Web to Chrome on Android

chrome/android/java/src/org/chromium/chrome/browser/physicalweb/PhysicalWeb.java

+// 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.
+
+package org.chromium.chrome.browser.physicalweb;
+
+import org.chromium.base.CommandLine;
+import org.chromium.chrome.browser.ChromeApplication;
+import org.chromium.chrome.browser.ChromeSwitches;
+import org.chromium.chrome.browser.ChromeVersionInfo;
+
+/**
+ * This class provides the basic interface to the Physical Web feature.
+ */
+public class PhysicalWeb {
+    public static boolean featureIsEnabled() {
+        boolean allowedChannel =
+                ChromeVersionInfo.isLocalBuild() || ChromeVersionInfo.isDevBuild();

[aurimas (slooooooooow), 2015/09/10 17:09:03]

It seems like you are enabling this in Chrome Dev and that requires emailing
Chrome launch review folks. Have you gone through that?

[cco3, 2015/09/11 17:10:46]

Is that a problem even though it's behind a flag?  If so, I can remove it on
dev.

+        boolean switchEnabled =
+                CommandLine.getInstance().hasSwitch(ChromeSwitches.ENABLE_PHYSICAL_WEB);
+        return allowedChannel && switchEnabled;
+    }
+
+    public static void startPhysicalWeb(ChromeApplication application) {
+        PhysicalWebBleClient physicalWebBleClient = PhysicalWebBleClient.getInstance(application);
+        physicalWebBleClient.subscribe();
+    }
+}