Setup field trial for one-click signin inforbar.

chrome/browser/api/infobars/one_click_signin_infobar_delegate.cc

Index: chrome/browser/api/infobars/one_click_signin_infobar_delegate.cc
diff --git a/chrome/browser/api/infobars/one_click_signin_infobar_delegate.cc b/chrome/browser/api/infobars/one_click_signin_infobar_delegate.cc
new file mode 100644
index 0000000000000000000000000000000000000000..6a3c1705d6eaf9c886b22e9cc23a8ffa02c7a5a1
--- /dev/null
+++ b/chrome/browser/api/infobars/one_click_signin_infobar_delegate.cc
@@ -0,0 +1,25 @@
+// Copyright (c) 2012 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.
+
+#include "chrome/browser/api/infobars/one_click_signin_infobar_delegate.h"
+
+const SkColor OneClickSigninInfoBarDelegate::kDefaultColor =
+    SkColorSetARGB(0, 0, 0, 0);
+
+OneClickSigninInfoBarDelegate::OneClickSigninInfoBarDelegate(
+    InfoBarService* infobar_service)
+  : ConfirmInfoBarDelegate(infobar_service) {
+}
+
+OneClickSigninInfoBarDelegate::~OneClickSigninInfoBarDelegate() {
+}
+
+void OneClickSigninInfoBarDelegate::GetAlternateColors(
+    AlternateColors* alt_colors) {
+  alt_colors->infobar_bottom_color = kDefaultColor;
+  alt_colors->infobar_top_color = kDefaultColor;
+  alt_colors->button_text_color = kDefaultColor;
+  alt_colors->button_background_color = kDefaultColor;
+  alt_colors->button_border_color = kDefaultColor;
+}