Update to Mojo SDK ab3f523596234e74 including URL{Request,Response}

DEPS

 # This file is automatically processed to create .DEPS.git which is the file
 # that gclient uses under git.
 #
 # See http://code.google.com/p/chromium/wiki/UsingGit
 #
 # To test manually, run:
 #   python tools/deps2git/deps2git.py -o .DEPS.git -w <gclientdir>
 # where <gcliendir> is the absolute path to the directory containing the
 # .gclient file (the parent of 'src').
 #
@@ skipping 47 matching lines @@
   'src/third_party/boringssl/src':
    'https://boringssl.googlesource.com/boringssl.git' + '@' +  Var('boringssl_revision'),
 
   'src/third_party/requests/src':
     Var('chromium_git') + '/external/github.com/kennethreitz/requests.git' + '@' + 'f172b30356d821d180fa4ecfa3e71c7274a32de4',
 
   'src/third_party/icu':
      Var('chromium_git') + '/chromium/deps/icu.git' + '@' + '7c81740601355556e630da515b74d889ba2f8d08',
 
   'src/third_party/mojo/src/mojo/public':
-     Var('chromium_git') + '/external/github.com/domokit/mojo_sdk.git' + '@' + '2e0bcb62eb86b8eb19c2327ad21766a19dda6ac9',
+     Var('chromium_git') + '/external/github.com/domokit/mojo_sdk.git' + '@' + 'ab3f523596234e747231166b5142f41d3869861a',
 
   'src/tools/grit':
     Var('chromium_git') + '/external/grit-i18n.git' + '@' + 'c1b1591a05209c1ad467e845ba8543c22f9072af', # from svn revision 189
 }
 
 deps_os = {
   'android': {
     'src/third_party/android_tools':
      Var('chromium_git') + '/android_tools.git' + '@' + '3c5189b5b05fad7e0bcfb60835bde75d4211964c',
 
@@ skipping 96 matching lines @@
   {
     'name': 'download_archiecture_independent_frameworks',
     'pattern': '',
     'action': [ 'python',
                 'src/third_party/mojo/src/mojo/public/tools/download_archiecture_independent_frameworks.py',
                 '--tools-directory=../../../../../../tools',
                 '--version-file=../../../../MOJO_VERSION',
               ],
   },
 ]