Implement new invalidations ack tracking system

chrome/browser/policy/cloud/DEPS

 # The //chrome/browser/policy code is being converted into a component at
 # //components/policy. This DEPS file is temporarily restricting the include
 # rules for this code; once all the exceptions are fixed then the code will
 # be moved, and this file will be removed.
 # http://crbug.com/271392
 
 include_rules = [
   "-chrome",
   "-chromeos",
   "-content",
@@ skipping 19 matching lines @@
     "+content/public/browser",
     "+content/public/common",
     "+content/public/test",
     "+content/test/net",
   ],
 
   r"cloud_policy_browsertest.cc": [
     "+sync/internal_api/public/base/invalidation.h",
   ],
 
+  r"cloud_policy_invalidator.h": [
+    "+sync/internal_api/public/base/invalidation.h",
+  ],
+
   # TODO(joaodasilva): remove these exceptions.
   r"cloud_policy_invalidator\.cc": [
     "+chrome/browser/invalidation/invalidation_service.h",
   ],
 
   r"cloud_policy_invalidator_unittest\.cc": [
     "+chrome/browser/invalidation/fake_invalidation_service.h",
   ],
 
   r"cloud_policy_manager_unittest\.cc": [
@@ skipping 15 matching lines @@
 
   r"user_cloud_policy_invalidator\.h": [
     "+content/public/browser/notification_observer.h",
     "+content/public/browser/notification_registrar.h",
   ],
 
   r"user_cloud_policy_manager_factory\.cc": [
     "+content/public/browser/browser_context.h",
   ],
 }