Move allocate instance id to chrome/.

chrome/common/extensions/api/_api_features.json

Index: chrome/common/extensions/api/_api_features.json
diff --git a/chrome/common/extensions/api/_api_features.json b/chrome/common/extensions/api/_api_features.json
index 186226cb838b6617da93d6ee6e83f47c0b3aaeb8..3a0710532abd16d1c2c87e85fd74b8e2acc3ef79 100644
--- a/chrome/common/extensions/api/_api_features.json
+++ b/chrome/common/extensions/api/_api_features.json
@@ -437,6 +437,11 @@
     "dependencies": ["permission:gcm"],
     "contexts": ["blessed_extension"]
   },
+  "guestview": {

[not at google - send to devlin, 2014/06/04 20:56:48]

can we call this guestviewInternal? (and then reconcile that webview isn't
called webviewInternal).

(btw the directory appears to be guest_view, implying to me that this should be
guestView, same comment re webview...)

[lazyboy, 2014/06/05 02:19:53]

I've renamed this to guestViewInternal.
Changed directory name under chrome/browser/extensions/api/guestview to
guest_view

For webview, can I do it in a separate patch?since we already have internal
functions there that are incorrectly named?

+    "internal": true,
+    "channel": "stable",
+    "contexts": ["blessed_extension", "unblessed_extension"]
+  },
   "hangoutsPrivate": {
     "channel": "stable",
     "contexts": ["blessed_extension"],