[android_webview] Add a command line setter tool.

build/android/adb_android_webview_command_line

 #!/bin/bash
 #
-# Copyright (c) 2012 The Chromium Authors. All rights reserved.
+# Copyright (c) 2013 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.
 
 # If no flags are given, prints the current content shell flags.
 #
 # Otherwise, the given flags are used to REPLACE (not modify) the content shell
 # flags. For example:
-#   adb_content_shell_command_line --enable-webgl
+#   adb_android_webview_command_line --enable-webgl
 #
 # To remove all content shell flags, pass an empty string for the flags:
-#   adb_content_shell_command_line ""
+#   adb_android_webview_command_line ""
 
-CMD_LINE_FILE=/data/local/tmp/content-shell-command-line
+CMD_LINE_FILE=/data/local/tmp/android-webview-command-line
 
 if [ $# -eq 0 ] ; then
   # If nothing specified, print the command line (stripping off "content_shell")
   tempfile=$(tempfile)
   adb pull $CMD_LINE_FILE $tempfile 2>/dev/null
   if [ $? -eq 0 ] ; then
     rm $tempfile
     adb shell cat $CMD_LINE_FILE | cut -d " " -f "2-" 2>/dev/null
   fi
 elif [ $# -eq 1 ] && [ "$1" = '' ] ; then
   # If given an empty string, delete the command line.
   set -x
   adb shell rm $CMD_LINE_FILE >/dev/null
 else
   # Else set it.
   set -x
-  adb shell "echo 'content_shell $*' > $CMD_LINE_FILE"
+  adb shell "echo 'android_webview $*' > $CMD_LINE_FILE"
   # Prevent other apps from modifying flags -- this can create security issues.
   adb shell chmod 0664 $CMD_LINE_FILE
 fi