[Android] Chagne items shown in context menu for tel link

chrome/android/java/src/org/chromium/chrome/browser/util/UrlUtilities.java

Index: chrome/android/java/src/org/chromium/chrome/browser/util/UrlUtilities.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/util/UrlUtilities.java b/chrome/android/java/src/org/chromium/chrome/browser/util/UrlUtilities.java
index 7fee8620291a54c8b52db0d0f4457d34c5bdc022..3c318eed7d8e3c8496bd8a7b883c7c1f4d607324 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/util/UrlUtilities.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/util/UrlUtilities.java
@@ -42,6 +42,24 @@ public class UrlUtilities {
     private static final Pattern URL_SCHEME_PATTERN =
             Pattern.compile("^[a-zA-Z]+$");
 
+    private static final String TEL_SCHEME = "tel:";
+
+    /**
+     * @param uri A URI.
+     *
+     * @return True if the URI's scheme is phone number scheme.
+     */
+    public static boolean isTelScheme(String uri) {
+        if (uri != null && uri.startsWith(TEL_SCHEME)) {

[Ted C, 2017/01/09 21:45:34]

return uri != null && uri.startsWith(TEL_SCHEME);

[ltian, 2017/01/10 04:45:06]

Done.

+            return true;
+        }
+        return false;
+    }
+
+    public static String getTelNumber(String uri) {

[Ted C, 2017/01/09 21:45:34]

javadoc all non private methods.  I would also clarify that includes everything
after the scheme.   According to the RFC that is more stuff, so I wouldn't
specifically guarantee this is only the phone number.

[ltian, 2017/01/10 04:45:06]

Done.

+        return uri.split(":")[1];
+    }
+
     /**
      * @param uri A URI.
      *