[EnhancedBookmarks] Fix a crash on exiting while loading.

chrome/android/java/src/org/chromium/chrome/browser/enhancedbookmarks/EnhancedBookmarkManager.java

Index: chrome/android/java/src/org/chromium/chrome/browser/enhancedbookmarks/EnhancedBookmarkManager.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/enhancedbookmarks/EnhancedBookmarkManager.java b/chrome/android/java/src/org/chromium/chrome/browser/enhancedbookmarks/EnhancedBookmarkManager.java
index bf8bd74f4cf4c4f3ec569a8f297875460eef63cd..c08c46e13f74acd908c3d8f1e74735869da76104 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/enhancedbookmarks/EnhancedBookmarkManager.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/enhancedbookmarks/EnhancedBookmarkManager.java
@@ -422,7 +422,7 @@ public class EnhancedBookmarkManager implements EnhancedBookmarkDelegate {
             RecordHistogram.recordEnumeratedHistogram("Stars.LaunchLocation", launchLocation,
                     LaunchLocation.COUNT);
             EnhancedBookmarkUtils.openBookmark(mActivity, url);
-            finishActivityOnPhone();
+            EnhancedBookmarkUtils.finishActivityOnPhone(mActivity);
         }
     }
 
@@ -439,14 +439,6 @@ public class EnhancedBookmarkManager implements EnhancedBookmarkDelegate {
     }
 
     @Override
-    public void finishActivityOnPhone() {
-        Activity activity = mActivity;
-        if (activity instanceof EnhancedBookmarkActivity) {
-            activity.finish();
-        }
-    }
-
-    @Override
     public void addUIObserver(EnhancedBookmarkUIObserver observer) {
         mUIObservers.addObserver(observer);
     }