Move most of WebApkUtils' methods from webapk.lib.common to webapk.shell_apk

chrome/android/webapk/shell_apk/src/org/chromium/webapk/shell_apk/WebApkUtils.java

Index: chrome/android/webapk/shell_apk/src/org/chromium/webapk/shell_apk/WebApkUtils.java
diff --git a/chrome/android/webapk/libs/common/src/org/chromium/webapk/lib/common/WebApkUtils.java b/chrome/android/webapk/shell_apk/src/org/chromium/webapk/shell_apk/WebApkUtils.java
similarity index 91%
rename from chrome/android/webapk/libs/common/src/org/chromium/webapk/lib/common/WebApkUtils.java
rename to chrome/android/webapk/shell_apk/src/org/chromium/webapk/shell_apk/WebApkUtils.java
index f1a05bc7a9697af53562e00c8f25b6e58def7a9b..bf6a0d6eff11ec572645b205d9c6117eff913ebf 100644
--- a/chrome/android/webapk/libs/common/src/org/chromium/webapk/lib/common/WebApkUtils.java
+++ b/chrome/android/webapk/shell_apk/src/org/chromium/webapk/shell_apk/WebApkUtils.java
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-package org.chromium.webapk.lib.common;
+package org.chromium.webapk.shell_apk;
 
 import android.content.Context;
 import android.content.pm.ApplicationInfo;
@@ -79,13 +79,4 @@ public class WebApkUtils {
         }
         return -1;
     }
-
-    /**
-     * Returns name of "Runtime Dex" asset in Chrome APK based on version.
-     * @param version
-     * @return Dex asset name.
-     */
-    public static String getRuntimeDexName(int version) {
-        return "webapk" + version + ".dex";
-    }
 }