Suport initializing DRP from cmd line switches.

If there is a command line switch to enable the data reduction proxy, we
will try to initialize the DRP by reading the DRP key from command line.
If the key from command line is empty, use the key embedded in WebView

BUG: 17211028

Change-Id: I028159656eb55270afb7ff7e793aba6e82794d99
1 file changed
tree: e406795ebbbe346a3e8a63fca030481464bbb27b
  2. chromium/
  3. nullwebview/