Roll gyp to 0bb67471bca068996e15b56738fa4824dfa19de0

Includes:
0bb67471bca068996e15b56738fa4824dfa19de0 Slightly better docs for git instead of svn
8866260996c063f514dfafd0e05743a42709a49c win: prefer amd64_x86 compiler on >= 2013, not just 2013
3601f26003c6163128a66330ce845b5cb309c7a9 Make dump_dependency_json.py write <| list files to the output directory
2f66a3f949530074bc5151ea8daf6c2b7abd07a7 Whitespace change to test the new GYP waterfalls.

TBR=dpranke@chromium.org
BUG=482238

Review URL: https://codereview.chromium.org/1113863002

Cr-Commit-Position: refs/heads/master@{#327540}

DEPS

@@ -165,7 +165,7 @@ deps = {
     Var('chromium_git') + '/external/grit-i18n.git' + '@' + 'c1b1591a05209c1ad467e845ba8543c22f9072af', # from svn revision 189
 
   'src/tools/gyp':
-    Var('chromium_git') + '/external/gyp.git' + '@' + '2a5511bd901f328db10d0b6415c864a5ff59fc81',
+    Var('chromium_git') + '/external/gyp.git' + '@' + '0bb67471bca068996e15b56738fa4824dfa19de0',
 
   'src/tools/swarming_client':
    Var('chromium_git') + '/external/swarming.client.git' + '@' +  Var('swarming_revision'),