Add an accessor method for suggestion score.

BUG=

Review URL: https://codereview.chromium.org/340523008

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@278324 0039d316-1c4b-4281-b951-d872f2087c98

chrome/android/java/src/org/chromium/chrome/browser/omnibox/OmniboxSuggestion.java

@@ -182,6 +182,13 @@ public class OmniboxSuggestion {
         return mIsDeletable;
     }
 
+    /**
+     * @return The relevance score of this suggestion.
+     */
+    public int getRelevance() {
+        return mRelevance;
+    }
+
     @Override
     public String toString() {
         return mType + " relevance=" +  mRelevance + " \"" + mDisplayText + "\" -> " + mUrl;