Implement isScreenBrightnessBoosted in BridgePowerManager.

Change-Id: I7da132c7522e5c352e14123f059b900008d94c95
diff --git a/tools/layoutlib/bridge/src/com/android/layoutlib/bridge/android/BridgePowerManager.java b/tools/layoutlib/bridge/src/com/android/layoutlib/bridge/android/BridgePowerManager.java
index 39ebdfc..5045fc3 100644
--- a/tools/layoutlib/bridge/src/com/android/layoutlib/bridge/android/BridgePowerManager.java
+++ b/tools/layoutlib/bridge/src/com/android/layoutlib/bridge/android/BridgePowerManager.java
@@ -145,4 +145,9 @@
     public void boostScreenBrightness(long time) throws RemoteException {
         // pass for now.
     }
+
+    @Override
+    public boolean isScreenBrightnessBoosted() {
+        return false;
+    }
 }