Bundle audio spatialization resources for use by the web audio API...

tools/grit/resource_ids

Index: tools/grit/resource_ids
===================================================================
--- tools/grit/resource_ids	(revision 71703)
+++ tools/grit/resource_ids	(working copy)
@@ -127,7 +127,18 @@
   "chrome/browser/autofill/autofill_resources.grd": {
     "messages": [19500],
   },
+
   "chrome/browser/resources/sync_internals_resources.grd": {
     "includes": [20000],
   },
+
+  # WebKitAudio.grd can be in two different places depending on whether we are
+  # in a chromium checkout or a webkit-only checkout.
+  "third_party/WebKit/Source/WebKit/chromium/WebKitAudio.grd": {
+    "includes": [21000],
+  },
+  "WebKitAudio.grd": {
+    "includes": [21000],
+  },
+
 }