[iOS] Upstream physical web classes.

ios/chrome/common/physical_web/physical_web.gyp

+# 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.
+
+{
+  'targets':[
+    {
+      # GN version: //ios/chrome/common/physical_web
+      'target_name': 'physical_web',
+      'type': 'static_library',
+      'sources': [
+        'physical_web_device.h',
+        'physical_web_device.mm',
+        'physical_web_request.h',
+        'physical_web_request.mm',
+        'physical_web_scanner.h',
+        'physical_web_scanner.mm',
+        'physical_web_types.h',
+        'physical_web_types.mm',
+      ],
+      'dependencies': [
+        '../../../../base/base.gyp:base',
+        '../../../../components/components.gyp:version_info',
+        '../../../../device/bluetooth/bluetooth.gyp:uribeacon',
+        '../../../../google_apis/google_apis.gyp:google_apis',
+        '../../../../ios/web/ios_web.gyp:user_agent',
+      ],
+      'link_settings': {
+        'libraries': [
+          '$(SDKROOT)/System/Library/Frameworks/CoreBluetooth.framework',
+          '$(SDKROOT)/System/Library/Frameworks/Foundation.framework',
+        ],
+      },
+    }
+  ]
+}