Chromoting: Move set(Client|Host)Mode into remoting namespace. Likewise for cancelPendingOperation. This fixes failing JS calls from choice.html (e.g., "OK" button for "Invalid Access Code")
Chromoting: Move set(Client|Host)Mode into remoting namespace.
Likewise for cancelPendingOperation.
This fixes failing JS calls from choice.html (e.g., "OK" button for "Invalid Access Code")

Also replace occurrences of:
  function f() {}
  remoting.f = f;
with:
  remoting.f = function() {}
to be consistent.

BUG=none
TEST=none

Review URL: http://codereview.chromium.org/7329011

git-svn-id: de016e52bd170d2d4f2344f9bf92d50478b649e0@91871 0039d316-1c4b-4281-b951-d872f2087c98

yitian134/chromium,ropik/chromium,adobe/chromium,gavinp/chromium,gavinp/chromium,yitian134/chromium,gavinp/chromium,gavinp/chromium,adobe/chromium,gavinp/chromium,gavinp/chromium,ropik/chromium,yitian134/chromium,yitian134/chromium,adobe/chromium,yitian134/chromium,ropik/chromium,adobe/chromium,yitian134/chromium,ropik/chromium,ropik/chromium,gavinp/chromium,gavinp/chromium,adobe/chromium,gavinp/chromium,adobe/chromium,adobe/chromium,adobe/chromium,yitian134/chromium,yitian134/chromium,gavinp/chromium,adobe/chromium,ropik/chromium,yitian134/chromium,ropik/chromium,yitian134/chromium,ropik/chromium,adobe/chromium,adobe/chromium,ropik/chromium