[Mac][Material Design] Update Omnibox dropdown on Mac to MD

chrome/browser/ui/cocoa/location_bar/manage_passwords_decoration.mm

Index: chrome/browser/ui/cocoa/location_bar/manage_passwords_decoration.mm
diff --git a/chrome/browser/ui/cocoa/location_bar/manage_passwords_decoration.mm b/chrome/browser/ui/cocoa/location_bar/manage_passwords_decoration.mm
index 86b9b9716fdea15fb187d3d0d1e294a34d0305f8..7a6c9256af5711037cdf5988adf276dfb152b88e 100644
--- a/chrome/browser/ui/cocoa/location_bar/manage_passwords_decoration.mm
+++ b/chrome/browser/ui/cocoa/location_bar/manage_passwords_decoration.mm
@@ -90,20 +90,12 @@ void ManagePasswordsDecoration::UpdateUIState() {
   SetVisible(true);
   if (!ui::MaterialDesignController::IsModeMaterial()) {
     SetImage(OmniboxViewMac::ImageForResource(icon_->icon_id()));
-  } else {
-    int resource_id = icon_->icon_id();
-    bool locationBarIsDark =
-        [[location_bar_->GetAutocompleteTextField() window]
-            inIncognitoModeWithSystemTheme];
-    SkColor vectorIconColor = gfx::kGoogleBlue700;
-    if (resource_id != IDR_SAVE_PASSWORD_ACTIVE) {
-      vectorIconColor = locationBarIsDark ? SK_ColorWHITE
-                                          : gfx::kChromeIconGrey;
-    }
-    NSImage* theImage = NSImageFromImageSkia(gfx::CreateVectorIcon(
-        gfx::VectorIconId::AUTOLOGIN, 16, vectorIconColor));
-    SetImage(theImage);
+    return;
   }
+  bool location_bar_is_dark =
+      [[location_bar_->GetAutocompleteTextField() window]
+          inIncognitoModeWithSystemTheme];
+  SetImage(GetMaterialIcon(location_bar_is_dark));
 }
 
 void ManagePasswordsDecoration::UpdateVisibleUI() {
@@ -115,3 +107,7 @@ void ManagePasswordsDecoration::HideBubble() {
   if (icon()->active() && ManagePasswordsBubbleCocoa::instance())
     ManagePasswordsBubbleCocoa::instance()->Close();
 }
+
+gfx::VectorIconId ManagePasswordsDecoration::GetMaterialVectorIconId() {
+  return gfx::VectorIconId::AUTOLOGIN;
+}