GitLab

-Changed list of files being checked for NaCl sdk installer.
-Changed Download and unziping of nacl_sdk folder on all the platforms(Used Zipfile module).
-Changed installation of NaCl SDK.
-Removed Hello world examples from test case.
-Added new examples like Input Events, Dynamic Library(Magic * ball), Load progress, Multi-threaded input events, Web socket
-Fixed pepper and chrome version verification
Made changes to run examples only when they match and print a "Incompatibility version" message otherwise.
Code Cleanup:
-Removed unused methods and pre-defined global variables.
-Removed pre-release gallery test.test(method-testNaClSDK) of new installation process of NaCl sdk.
-Re-factored code by following DRY(Donot Repeat yourself) principle and by removing redundancies in the code.

NOTRY=true

Review URL: https://chromiumcodereview.appspot.com/10399078

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@138259 0039d316-1c4b-4281-b951-d872f2087c98