Enable WebAudio for Android ARM.

This also enables the use of the third party OpenMAX DL FFT library.

BUG=

Review URL: https://codereview.chromium.org/14411005

git-svn-id: http://src.chromium.org/svn/trunk/src/build@195732 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

common.gypi

@@ -645,8 +645,8 @@
         ['OS=="android" and target_arch=="arm" and android_webview_build==0', {
           # Currently only supported on Android ARM, without webview.
           # When enabled, this will also enable WebAudio on Android
-          # ARM.  Default is disabled.
-          'use_openmax_dl_fft%': 0,
+          # ARM.  Default is enabled.
+          'use_openmax_dl_fft%': 1,
         }, {
           'use_openmax_dl_fft%': 0,
         }],