Revert 75361 - ots roll (to r52)...

DEPS

 vars = {
   # Use this googlecode_url variable only if there is an internal mirror for it.
   # If you do not know, use the full path while defining your new deps entry.
   "googlecode_url": "http://%s.googlecode.com/svn",
   "webkit_trunk": "http://svn.webkit.org/repository/webkit/trunk",
   "nacl_trunk": "http://src.chromium.org/native_client/trunk",
   "webkit_revision": "78845",
   "chromium_git": "http://git.chromium.org/git",
   "swig_revision": "69281",
   "nacl_revision": "4340",
@@ skipping 78 matching lines @@
   "src/third_party/WebKit/Source":
     Var("webkit_trunk") + "/Source@" + Var("webkit_revision"),
 
   "src/third_party/WebKit/Tools/DumpRenderTree":
     Var("webkit_trunk") + "/Tools/DumpRenderTree@" + Var("webkit_revision"),
 
   "src/third_party/WebKit/Tools/Scripts":
     Var("webkit_trunk") + "/Tools/Scripts@" + Var("webkit_revision"),
 
   "src/third_party/ots":
-    (Var("googlecode_url") % "ots") + "/trunk@52",
+    (Var("googlecode_url") % "ots") + "/trunk@50",
 
   "src/tools/page_cycler/acid3":
     "/trunk/deps/page_cycler/acid3@19546",
 
   # We run these layout tests as UI tests. Since many of the buildbots that
   # run layout tests do NOT have access to the LayoutTest directory, we need
   # to map them here. In practice, these do not take up much space.
   "src/chrome/test/data/layout_tests/LayoutTests/fast/events":
     Var("webkit_trunk") + "/LayoutTests/fast/events@" +
     Var("webkit_revision"),
@@ skipping 208 matching lines @@
 ]
 
 
 hooks = [
   {
     # A change to a .gyp, .gypi, or to GYP itself should run the generator.
     "pattern": ".",
     "action": ["python", "src/build/gyp_chromium"],
   },
 ]