add missing file

editor/tools/plugins/com.google.dart.tools.core/src/com/google/dart/tools/core/mobile/AndroidDevice.java

Index: editor/tools/plugins/com.google.dart.tools.core/src/com/google/dart/tools/core/mobile/AndroidDevice.java
===================================================================
--- editor/tools/plugins/com.google.dart.tools.core/src/com/google/dart/tools/core/mobile/AndroidDevice.java	(revision 0)
+++ editor/tools/plugins/com.google.dart.tools.core/src/com/google/dart/tools/core/mobile/AndroidDevice.java	(revision 0)
@@ -0,0 +1,46 @@
+package com.google.dart.tools.core.mobile;
+
+/**
+ * Class representing a connected android device as returned by
+ * {@link AndroidDebugBridge#getConnectedDevice()}.
+ */
+public class AndroidDevice {
+
+  public static boolean isEqual(AndroidDevice d1, AndroidDevice d2) {
+    return d1 == null ? d2 == null : d1.equals(d2);
+  }
+
+  private String deviceId;
+
+  private boolean authorized;
+
+  public AndroidDevice(String deviceId, boolean authorized) {
+    if (deviceId == null) {
+      throw new IllegalArgumentException();
+    }
+    this.deviceId = deviceId;
+    this.authorized = authorized;
+  }
+
+  @Override
+  public boolean equals(Object other) {
+    if (other instanceof AndroidDevice) {
+      AndroidDevice d = (AndroidDevice) other;
+      return deviceId.equals(d.getDeviceId()) && authorized == d.isAuthorized();
+    }
+    return false;
+  }
+
+  public String getDeviceId() {
+    return deviceId;
+  }
+
+  @Override
+  public int hashCode() {
+    return deviceId.hashCode() + (authorized ? 1 : 0);
+  }
+
+  public boolean isAuthorized() {
+    return authorized;
+  }
+}