[cros] Fix UI issues on SignIn pod.

chrome/browser/chromeos/login/helper.h

 // Copyright (c) 2010 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.
 //
 // This file contains helper functions used by Chromium OS login.
 
 #ifndef CHROME_BROWSER_CHROMEOS_LOGIN_HELPER_H_
 #define CHROME_BROWSER_CHROMEOS_LOGIN_HELPER_H_
 #pragma once
 
 #include "third_party/skia/include/core/SkColor.h"
 
 class GURL;
 
 namespace gfx {
 class Rect;
 class Size;
 }  // namespace gfx
 
 namespace views {
+class NativeButton;
 class Painter;
+class Textfield;
 class Throbber;
 }  // namespace views
 
 namespace chromeos {
 
 // Creates default smoothed throbber for time consuming operations on login.
 views::Throbber* CreateDefaultSmoothedThrobber();
 
 // Creates default throbber.
 views::Throbber* CreateDefaultThrobber();
 
 // Creates painter for login background.
 views::Painter* CreateBackgroundPainter();
 
 // Returns bounds of the screen to use for login wizard.
 // The rect is centered within the default monitor and sized accordingly if
 // |size| is not empty. Otherwise the whole monitor is occupied.
 gfx::Rect CalculateScreenBounds(const gfx::Size& size);
 
+// Corrects font size for NativeButton control.
+void CorrectNativeButtonFontSize(views::NativeButton* button);
+
+// Corrects font size for Textfield control.
+void CorrectTextfieldFontSize(views::Textfield* textfield);
+
 // Returns URL used for account recovery.
 GURL GetAccountRecoveryHelpUrl();
 
 // Define the constants in |login| namespace to avoid potential
 // conflict with other chromeos components.
 namespace login {
 
 // Command tag for buttons on the lock screen.
 enum Command {
   SIGN_OUT,
 };
 
+// Minimal width for the button.
+const int kButtonMinWidth = 90;
+
 // Gap between edge and image view, and image view and controls.
 const int kBorderSize = 6;
 
 // The size of user image.
 const int kUserImageSize = 256;
 
 // Background color of the login controls.
 const SkColor kBackgroundColor = SK_ColorWHITE;
 
 // Text color on the login controls.
 const SkColor kTextColor = SK_ColorWHITE;
 
+// Default link color on login/OOBE controls.
+const SkColor kLinkColor = 0xFF0066CC;
+
 // Default size of the OOBE screen. Includes 10px shadow from each side.
 // See rounded_rect_painter.cc for border definitions.
 const int kWizardScreenWidth = 800;
 const int kWizardScreenHeight = 450;
 
 const int kScreenCornerRadius = 10;
 const int kUserCornerRadius = 5;
 
 
 }  // namespace login
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_LOGIN_HELPER_H_