[WebView] Reorganize all of the WebView Shell apks into their own dir.

android_webview/tools/WebViewShell/res/menu/main_menu.xml

Index: android_webview/tools/WebViewShell/res/menu/main_menu.xml
diff --git a/android_webview/tools/WebViewShell/res/menu/main_menu.xml b/android_webview/tools/WebViewShell/res/menu/main_menu.xml
deleted file mode 100644
index f577c7c98ffb0a8188fad6416681632a3b8dca11..0000000000000000000000000000000000000000
--- a/android_webview/tools/WebViewShell/res/menu/main_menu.xml
+++ /dev/null
@@ -1,13 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!-- Copyright 2015 The Chromium Authors. All rights reserved.
-     Use of this source code is governed by a BSD-style license that can be
-     found in the LICENSE file. -->
-
-<menu xmlns:android="http://schemas.android.com/apk/res/android">
-    <item android:id="@+id/menu_reset_webview"
-          android:title="@string/menu_reset_webview"/>
-    <item android:id="@+id/menu_clear_cache"
-          android:title="@string/menu_clear_cache"/>
-    <item android:id="@+id/menu_about"
-          android:title="@string/menu_about"/>
-</menu>