Implement policy for disabling auto fill.

chrome/browser/cocoa/preferences_window_controller.mm

Index: chrome/browser/cocoa/preferences_window_controller.mm
diff --git a/chrome/browser/cocoa/preferences_window_controller.mm b/chrome/browser/cocoa/preferences_window_controller.mm
index 30d8bafbf5e3c136970e6a686f03cf15a8489bb1..777f1d0613633f3e1a4de75fa5fa99bb7a7f96cd 100644
--- a/chrome/browser/cocoa/preferences_window_controller.mm
+++ b/chrome/browser/cocoa/preferences_window_controller.mm
@@ -419,6 +419,7 @@ class ManagedPrefsBannerState : public ManagedPrefsBannerBase {
 @implementation PreferencesWindowController
 
 @synthesize showHomeButtonEnabled = showHomeButtonEnabled_;
+@synthesize autoFillSettingsButtonEnabled = autoFillSettingsButtonEnabled_;
 @synthesize proxiesConfigureButtonEnabled = proxiesConfigureButtonEnabled_;
 
 - (id)initWithProfile:(Profile*)profile initialPage:(OptionsPage)initialPage {
@@ -488,6 +489,9 @@ class ManagedPrefsBannerState : public ManagedPrefsBannerBase {
     PersonalDataManager* personalDataManager =
         profile_->GetPersonalDataManager();
     [autoFillSettingsButton_ setHidden:(personalDataManager == NULL)];
+    bool autofill_disabled_by_policy =
+        autoFillEnabled_.IsManaged() && !autoFillEnabled_.GetValue();
+    [self setAutoFillSettingsButtonEnabled:!autofill_disabled_by_policy];
 
     // Initialize the proxy pref set observer.
     proxyPrefs_.reset(
@@ -757,6 +761,7 @@ class ManagedPrefsBannerState : public ManagedPrefsBannerBase {
   // Personal Stuff panel
   askSavePasswords_.Init(prefs::kPasswordManagerEnabled,
                          prefs_, observer_.get());
+  autoFillEnabled_.Init(prefs::kAutoFillEnabled, prefs_, observer_.get());
   currentTheme_.Init(prefs::kCurrentThemeID, prefs_, observer_.get());
 
   // Under the hood panel
@@ -1212,6 +1217,11 @@ const int kDisabledIndex = 1;
     [self setPasswordManagerEnabledIndex:askSavePasswords_.GetValue() ?
         kEnabledIndex : kDisabledIndex];
   }
+  if (*prefName == prefs::kAutoFillEnabled) {
+    bool autofill_disabled_by_policy =
+        autoFillEnabled_.IsManaged() && !autoFillEnabled_.GetValue();
+    [self setAutoFillSettingsButtonEnabled:!autofill_disabled_by_policy];
+  }
   if (*prefName == prefs::kCurrentThemeID) {
     [self setIsUsingDefaultTheme:currentTheme_.GetValue().length() == 0];
   }