depot_tools: add dependencies on infra_paths

This is a preparation for removal of infra-specific
paths from the recipe engine.

BUG=chromium:605919

Review-Url: https://codereview.chromium.org/1930373002

git-svn-id: svn://svn.chromium.org/chrome/trunk/tools/depot_tools@300335 0039d316-1c4b-4281-b951-d872f2087c98

recipe_modules/gclient/__init__.py

 DEPS = [
+  'infra_paths',
   'recipe_engine/json',
   'recipe_engine/path',
   'recipe_engine/platform',

recipe_modules/git/__init__.py

 DEPS = [
+  'infra_paths',
   'recipe_engine/path',
   'recipe_engine/platform',
   'recipe_engine/properties',

recipe_modules/rietveld/example.py

@@ -3,6 +3,7 @@
 # found in the LICENSE file.
 
 DEPS = [
+  'infra_paths',
   'recipe_engine/path',
   'recipe_engine/properties',
   'recipe_engine/step',