Adding a GYP variable to indicate if a build wants Title Case strings or not....

DEPS

 vars = {
   "webkit_trunk":
     "http://svn.webkit.org/repository/webkit/trunk",
   "webkit_revision": "48500",
   "ffmpeg_revision": "26428",
 }
 
 deps = {
   "src/breakpad/src":
     "http://google-breakpad.googlecode.com/svn/trunk/src@391",
@@ skipping 16 matching lines @@
   "src/third_party/icu":
     "/trunk/deps/third_party/icu42@26673",
 
   "src/third_party/hunspell":
    "/trunk/deps/third_party/hunspell128@26238",
 
   "src/third_party/protobuf2/src":
     "http://protobuf.googlecode.com/svn/trunk@219",
 
   "src/tools/gyp":
-    "http://gyp.googlecode.com/svn/trunk@657",
+    "http://gyp.googlecode.com/svn/trunk@664",
 
   "src/v8":
     "http://v8.googlecode.com/svn/trunk@2901",
 
   "src/native_client":
     "http://nativeclient.googlecode.com/svn/trunk/src/native_client@730",
 
   "src/third_party/skia":
     "http://skia.googlecode.com/svn/trunk@341",
 
@@ skipping 127 matching lines @@
     # A change to a .gyp, .gypi, or to GYP itself should run the generator.
     "pattern": "\\.gypi?$|[/\\\\]src[/\\\\]tools[/\\\\]gyp[/\\\\]|[/\\\\]src[/\\\\]build[/\\\\]gyp_chromium$",
     "action": ["python", "src/build/gyp_chromium"],
   },
   {
     # Workaround IncrediBuild problem. http://crbug.com/17706.
     "pattern": "\\.grd$",
     "action": ["python", "src/build/win/clobber_generated_headers.py", "$matching_files"],
   },
 ]