nfc: Implement device::NfcPeerChromeOS.

Implemented device::NfcPeer for Chrome OS. With this, Chrome can now
interact with remote NFC adapters.

BUG=316471
TEST=device_unittests

Review URL: https://codereview.chromium.org/112183002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@242205 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 28 insertions, 5 deletions

diff --git a/chromeos/dbus/fake_nfc_adapter_client.h b/chromeos/dbus/fake_nfc_adapter_client.h
index 268b506..6752458 100644
--- a/chromeos/dbus/fake_nfc_adapter_client.h
+++ b/chromeos/dbus/fake_nfc_adapter_client.h
@@ -19,6 +19,11 @@ namespace chromeos {
 // and is used both in test cases in place of a mock and on the Linux desktop.
 class CHROMEOS_EXPORT FakeNfcAdapterClient : public NfcAdapterClient {
  public:
+  // The object paths for the adapters that are being emulated.
+  static const char kAdapterPath0[];
+  static const char kAdapterPath1[];
+
+  // Properties structure that provides fake behavior for D-Bus calls.
   struct Properties : public NfcAdapterClient::Properties {
     explicit Properties(const PropertyChangedCallback& callback);
     virtual ~Properties();
@@ -51,13 +56,27 @@ class CHROMEOS_EXPORT FakeNfcAdapterClient : public NfcAdapterClient {
       const base::Closure& callback,
       const nfc_client_helpers::ErrorCallback& error_callback) OVERRIDE;
 
-  // Sets the adapter as |present|.
+  // Sets the adapter as |present|. Used for testing.
   void SetAdapterPresent(bool present);
   void SetSecondAdapterPresent(bool present);
 
-  // The object paths for the adapters that are being emulated.
-  static const char kAdapterPath0[];
-  static const char kAdapterPath1[];
+  // Tells the FakeNfcAdapterClient to add the device with path |device_path|
+  // to its list of devices exposed for |kAdapterPath0|, if it is not already in
+  // the list and promptly triggers a property changed signal. This method will
+  // also fail, if the polling property of the adapter is false and will set it
+  // to false on success.
+  void SetDevice(const dbus::ObjectPath& device_path);
+
+  // Talls the FakeNfcAdapterClient to remove the device with path
+  // |device_path| from its list of devices exposed for |kAdapterPath0|, if it
+  // is in its list of devices. On success, this method will mark the polling
+  // property of the adapter to true.
+  void UnsetDevice(const dbus::ObjectPath& device_path);
+
+  // Sets a flag that determines whether FakeNfcAdapterClient should notify
+  // FakeNfcDeviceClient to start a pairing simulation as a result of a call
+  // to StartPollLoop(). This is enabled by default.
+  void EnablePairingOnPoll(bool enabled);
 
  private:
   // Property changed callback passed when we create Properties* structures.
@@ -71,10 +90,14 @@ class CHROMEOS_EXPORT FakeNfcAdapterClient : public NfcAdapterClient {
   scoped_ptr<Properties> properties_;
   scoped_ptr<Properties> second_properties_;
 
-  // Whether the adapter and second adapter is present or not.
+  // Whether the adapter and second adapter are present or not.
   bool present_;
   bool second_present_;
 
+  // If true, a pairing simulation is initiated on a successful call to
+  // StartPollLoop().
+  bool start_pairing_on_poll_;
+
   DISALLOW_COPY_AND_ASSIGN(FakeNfcAdapterClient);
 };