Add PhysicalWebShareActivity

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

Index: chrome/android/java/src/org/chromium/chrome/browser/physicalweb/PhysicalWebShareActivity.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/physicalweb/PhysicalWebShareActivity.java b/chrome/android/java/src/org/chromium/chrome/browser/physicalweb/PhysicalWebShareActivity.java
new file mode 100644
index 0000000000000000000000000000000000000000..5fe13a3583fad9cb49531491e2635c90823778b5
--- /dev/null
+++ b/chrome/android/java/src/org/chromium/chrome/browser/physicalweb/PhysicalWebShareActivity.java
@@ -0,0 +1,44 @@
+// Copyright 2017 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 android.content.Intent;
+import android.os.Build;
+import android.os.Bundle;
+import android.support.v7.app.AppCompatActivity;
+
+import org.chromium.chrome.browser.share.ShareHelper;
+import org.chromium.chrome.browser.tab.Tab;
+import org.chromium.chrome.browser.util.IntentUtils;
+
+/**
+ * A simple activity that allows Chrome to start the physical web sharing service.
+ */
+public class PhysicalWebShareActivity extends AppCompatActivity {
+    private static final String TAG = "PhysicalWebShareActivity";
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+
+        try {
+            Intent intent = getIntent();
+            if (intent == null) return;
+            if (!Intent.ACTION_SEND.equals(intent.getAction())) return;
+            if (!IntentUtils.safeHasExtra(getIntent(), ShareHelper.EXTRA_TASK_ID)) return;
+            handleShareAction();
+        } finally {
+            finish();
+        }
+    }
+
+    private void handleShareAction() {
+        // TODO(iankc): implement sharing
+    }
+
+    public static boolean sharingIsEnabled(Tab currentTab) {
+        return PhysicalWeb.sharingIsEnabled() && Build.VERSION.SDK_INT >= Build.VERSION_CODES.M;
+    }
+}