Removed unused variable from DelayedScreenLockIntentHandler.

chrome/android/java/src/org/chromium/chrome/browser/DelayedScreenLockIntentHandler.java

Index: chrome/android/java/src/org/chromium/chrome/browser/DelayedScreenLockIntentHandler.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/DelayedScreenLockIntentHandler.java b/chrome/android/java/src/org/chromium/chrome/browser/DelayedScreenLockIntentHandler.java
index 374676648702659956b606ffe1d4add197350293..a68bde63952d2d1bda27913d161a242cbf07bd58 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/DelayedScreenLockIntentHandler.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/DelayedScreenLockIntentHandler.java
@@ -9,7 +9,6 @@ import android.content.Context;
 import android.content.Intent;
 import android.content.IntentFilter;
 import android.os.Handler;
-import android.os.SystemClock;
 
 import org.chromium.base.ContextUtils;
 
@@ -26,7 +25,6 @@ public class DelayedScreenLockIntentHandler extends BroadcastReceiver {
     private final Runnable mUnregisterTask;
 
     private Intent mDeferredIntent;
-    private long mDeferredIntentCreatedTime;
     private boolean mReceiverRegistered;
 
     public DelayedScreenLockIntentHandler() {
@@ -64,7 +62,6 @@ public class DelayedScreenLockIntentHandler extends BroadcastReceiver {
         }
 
         mDeferredIntent = intent;
-        mDeferredIntentCreatedTime = SystemClock.elapsedRealtime();
         registerReceiver();
         mTaskHandler.postDelayed(mUnregisterTask, VALID_DEFERRED_PERIOD_MS);
     }