[Enhanced Bookmark]Rewrite initialization logic

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

Index: chrome/android/java/src/org/chromium/chrome/browser/enhancedbookmarks/EnhancedBookmarkPage.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/enhancedbookmarks/EnhancedBookmarkPage.java b/chrome/android/java/src/org/chromium/chrome/browser/enhancedbookmarks/EnhancedBookmarkPage.java
index f30da93fc4e34acc8d7bcaeccf4ad60b75a4ec10..889be8c99717ffaa05c89b18d886ec53a9172b27 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/enhancedbookmarks/EnhancedBookmarkPage.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/enhancedbookmarks/EnhancedBookmarkPage.java
@@ -29,6 +29,7 @@ public class EnhancedBookmarkPage implements NativePage, EnhancedBookmarkStateCh
     private final int mBackgroundColor;
     private final int mThemeColor;
     private EnhancedBookmarkManager mManager;
+    private String mCurrentUrl;
 
     /**
      * Create a new instance of an enhanced bookmark page.
@@ -97,6 +98,7 @@ public class EnhancedBookmarkPage implements NativePage, EnhancedBookmarkStateCh
 
     @Override
     public void updateForUrl(String url) {
+        mCurrentUrl = url;
         mManager.updateForUrl(url);
     }
 
@@ -108,6 +110,7 @@ public class EnhancedBookmarkPage implements NativePage, EnhancedBookmarkStateCh
 
     @Override
     public void onBookmarkUIStateChange(String url) {
+        if (url.equals(mCurrentUrl)) return;
         mTab.loadUrl(new LoadUrlParams(url));
     }
 }