Revert "Changed NavigationController access to through tab in Java code"

chrome/android/java/src/org/chromium/chrome/browser/toolbar/ToolbarTablet.java

Index: chrome/android/java/src/org/chromium/chrome/browser/toolbar/ToolbarTablet.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/toolbar/ToolbarTablet.java b/chrome/android/java/src/org/chromium/chrome/browser/toolbar/ToolbarTablet.java
index 97e3ee18e24944c42c4c22b13aca5287230d5f84..99367fc21c134ee27a67bd68d08426bfdef7a187 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/toolbar/ToolbarTablet.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/toolbar/ToolbarTablet.java
@@ -265,9 +265,9 @@ public class ToolbarTablet extends ToolbarLayout implements OnClickListener {
 
     private void displayNavigationPopup(boolean isForward, View anchorView) {
         Tab tab = getToolbarDataProvider().getTab();
-        if (tab == null || tab.getNavigationHandler() == null) return;
-        mNavigationPopup = new NavigationPopup(
-                tab.getProfile(), getContext(), tab.getNavigationHandler(), isForward);
+        if (tab == null || tab.getWebContents() == null) return;
+        mNavigationPopup = new NavigationPopup(tab.getProfile(), getContext(),
+                tab.getWebContents().getNavigationController(), isForward);
 
         mNavigationPopup.setAnchorView(anchorView);