Remove unused Interests code.

chrome/android/java/src/org/chromium/chrome/browser/ntp/NewTabPageToolbar.java

Index: chrome/android/java/src/org/chromium/chrome/browser/ntp/NewTabPageToolbar.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/ntp/NewTabPageToolbar.java b/chrome/android/java/src/org/chromium/chrome/browser/ntp/NewTabPageToolbar.java
index 228167958d093d90fafe394c04d9997752c521f7..40002217f84e23c1b1aeadeeea93de1b2c73251e 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/ntp/NewTabPageToolbar.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/ntp/NewTabPageToolbar.java
@@ -21,7 +21,7 @@ import org.chromium.chrome.browser.widget.TintedDrawable;
  */
 public class NewTabPageToolbar extends LinearLayout {
 
-    private ViewGroup mBookmarksButton, mRecentTabsButton, mInterestsButton;
+    private ViewGroup mBookmarksButton, mRecentTabsButton;
 
     /**
      * Constructor for inflating from xml.
@@ -38,10 +38,6 @@ public class NewTabPageToolbar extends LinearLayout {
         return mRecentTabsButton;
     }
 
-    public View getInterestsButton() {
-        return mInterestsButton;
-    }
-
     @Override
     protected void onFinishInflate() {
         super.onFinishInflate();
@@ -50,7 +46,6 @@ public class NewTabPageToolbar extends LinearLayout {
         ((TextView) mBookmarksButton.getChildAt(0)).setText(R.string.ntp_bookmarks);
         ((TextView) mBookmarksButton.getChildAt(0)).setContentDescription(getResources().getString(
                 R.string.accessibility_ntp_toolbar_btn_bookmarks));
-        mInterestsButton =  initButton(R.id.interests_button, R.drawable.btn_star_filled);
 
         setBackgroundColor(NtpColorUtils.getToolbarBackgroundColorResource(getResources()));
     }