Allow chromedriver to install an extension and get all installed extension IDs.

chrome/test/webdriver/webdriver_server.cc

Index: chrome/test/webdriver/webdriver_server.cc
diff --git a/chrome/test/webdriver/webdriver_server.cc b/chrome/test/webdriver/webdriver_server.cc
index abf64e077c5df6f102dd69f7d999bc3b0d65b2ae..60060c1423bc45b330cbeb6ceda68c20bb98a9e1 100644
--- a/chrome/test/webdriver/webdriver_server.cc
+++ b/chrome/test/webdriver/webdriver_server.cc
@@ -142,8 +142,9 @@ void InitCallbacks(Dispatcher* dispatcher,
   dispatcher->Add<BrowserConnectionCommand>("/session/*/browser_connection");
   dispatcher->Add<AppCacheStatusCommand>("/session/*/application_cache/status");
 
-  // Chrome-specific command.
+  // Chrome-specific commands.
   dispatcher->Add<ExtensionsCommand>("/session/*/chrome/extensions");
+  dispatcher->Add<ViewsCommand>("/session/*/chrome/views");
 
   // Since the /session/* is a wild card that would match the above URIs, this
   // line MUST be after all other webdriver command callbacks.