Split out foreground session tracking from the application code.

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

Index: chrome/android/java/src/org/chromium/chrome/browser/BrowserRestartActivity.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/BrowserRestartActivity.java b/chrome/android/java/src/org/chromium/chrome/browser/BrowserRestartActivity.java
index ff20d15edd079ee8e08d3cfcbbf9c164fa084cf7..3a5679fc5f81f45c58af154c438210496daf4ac8 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/BrowserRestartActivity.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/BrowserRestartActivity.java
@@ -14,6 +14,7 @@ import android.os.Process;
 import android.text.TextUtils;
 
 import org.chromium.base.ContextUtils;
+import org.chromium.chrome.browser.init.ChromeLifetimeController;
 import org.chromium.chrome.browser.util.IntentUtils;
 
 /**
@@ -27,14 +28,14 @@ import org.chromium.chrome.browser.util.IntentUtils;
  * AlarmManager, which requires a minimum alarm duration of 5 seconds: https://crbug.com/515919.
  */
 public class BrowserRestartActivity extends Activity {
-    static final String ACTION_START_WATCHDOG =
+    public static final String ACTION_START_WATCHDOG =
             "org.chromium.chrome.browser.BrowserRestartActivity.start_watchdog";
-    static final String ACTION_KILL_PROCESS =
+    public static final String ACTION_KILL_PROCESS =
             "org.chromium.chrome.browser.BrowserRestartActivity.kill_process";
 
-    static final String EXTRA_MAIN_PID =
+    public static final String EXTRA_MAIN_PID =
             "org.chromium.chrome.browser.BrowserRestartActivity.main_pid";
-    static final String EXTRA_RESTART =
+    public static final String EXTRA_RESTART =
             "org.chromium.chrome.browser.BrowserRestartActivity.restart";
 
     private static final String TAG = "BrowserRestartActivity";