[Autofill] Add protobuf for Google Wallet risk parameters and a utility function for filling it out.

chrome/browser/autofill/DEPS

Index: chrome/browser/autofill/DEPS
diff --git a/chrome/browser/autofill/DEPS b/chrome/browser/autofill/DEPS
index 32aaa6ccae5a3aaf3d3b14fef85d80667c6b9351..115dffbcec291d32017318e98464e37082105437 100644
--- a/chrome/browser/autofill/DEPS
+++ b/chrome/browser/autofill/DEPS
@@ -1,7 +1,7 @@
 include_rules = [
-  # Autofill is being made into a Browser Component, so we have these
-  # three basic rules followed by temporary exceptions.  Please don't
-  # add to the list of exceptions!
+  # Autofill is being made into a Browser Component, so we have these basic
+  # rules followed by temporary exceptions.  Please don't add to the list of
+  # exceptions!
   "-chrome/browser",
   "+chrome/browser/api",
   "+chrome/browser/autofill",
@@ -43,6 +43,12 @@ specific_include_rules = {
     "!chrome/browser/ui/browser_window.h",
   ],
 
+  # TODO(joi): Remove these dependencies once the Prefs refactoring is complete.
+  'fingerprint\.cc': [
+    "!chrome/browser/browser_process.h",
+    "!chrome/browser/prefs/pref_service.h",
+  ],
+
   # TODO(joi): May be able to get rid of the need for this by moving
   # PersonalDataManagerFactory to chrome/browser/profiles.
   'personal_data_manager_factory\.(h|cc)': [