Remove all references to GIT_MODE from depot_tools

recipe_modules/bot_update/example.py

 # Copyright 2014 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 DEPS = [
   'bot_update',
   'gclient',
   'recipe_engine/path',
   'recipe_engine/properties',
 ]
 
 def RunSteps(api):
   api.gclient.use_mirror = True
 
-  src_cfg = api.gclient.make_config(GIT_MODE=True, CACHE_DIR='[GIT_CACHE]')
+  src_cfg = api.gclient.make_config(CACHE_DIR='[GIT_CACHE]')
   soln = src_cfg.solutions.add()
   soln.name = 'src'
-  soln.url = 'svn://svn.chromium.org/chrome/trunk/src'
+  soln.url = 'https://chromium.googlesource.com/chromium/src.git'
   soln.revision = api.properties.get('revision')
   api.gclient.c = src_cfg
   api.gclient.c.revisions.update(api.properties.get('revisions', {}))
   api.gclient.c.got_revision_mapping['src'] = 'got_cr_revision'
   api.gclient.c.patch_projects['v8'] = ('src/v8', 'HEAD')
   api.gclient.c.patch_projects['angle/angle'] = ('src/third_party/angle',
                                                  'HEAD')
   patch = api.properties.get('patch', True)
   clobber = True if api.properties.get('clobber') else False
   force = True if api.properties.get('force') else False
@@ skipping 104 matching lines @@
       mastername='experimental',
       buildername='Experimental Builder',
       slavename='somehost',
       no_shallow=1
   )
   yield api.test('off') + api.properties(
       mastername='experimental',
       buildername='Experimental Builder',
       slavename='somehost',
   )
-  yield api.test('svn_mode') + api.properties(
-      mastername='experimental.svn',
-      buildername='Experimental SVN Builder',
-      slavename='somehost',
-      force=1
-  )
   yield api.test('clobber') + api.properties(
       mastername='experimental',
       buildername='Experimental Builder',
       slavename='somehost',
       clobber=1
   )
   yield api.test('reset_root_solution_revision') + api.properties(
       mastername='experimental',
       buildername='Experimental Builder',
       slavename='somehost',
@@ skipping 26 matching lines @@
       patch_url='http://src.chromium.org/foo/bar',
       patch_project='v8',
       revisions={'src/v8': 'abc'}
   )
   yield api.test('tryjob_v8_head_by_default') + api.properties.tryserver(
       patch_project='v8',
   )
   yield api.test('tryjob_gerrit_angle') + api.properties.tryserver_gerrit(
       full_project_name='angle/angle',
   )