Remove explicit keyword from multi-argument constructors

chrome/browser/chromeos/login/rounded_rect_painter.cc

 // 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.
 
 #include "chrome/browser/chromeos/login/rounded_rect_painter.h"
 
 #include "base/logging.h"
 #include "chrome/browser/chromeos/login/helper.h"
 #include "third_party/skia/include/effects/SkBlurMaskFilter.h"
 #include "third_party/skia/include/effects/SkGradientShader.h"
@@ skipping 167 matching lines @@
 void RoundedRectBorder::GetInsets(gfx::Insets* insets) const {
   DCHECK(insets);
   int shadow = border_->shadow;
   int inset = border_->corner_radius / 2 + border_->padding + shadow;
   insets->Set(inset - shadow / 3, inset, inset + shadow / 3, inset);
 }
 
 // Simple solid round background.
 class RoundedBackground : public views::Background {
  public:
-  explicit RoundedBackground(int corner_radius,
-                             int stroke_width,
-                             const SkColor& background_color,
-                             const SkColor& stroke_color)
+  RoundedBackground(int corner_radius,
+                    int stroke_width,
+                    const SkColor& background_color,
+                    const SkColor& stroke_color)
       : corner_radius_(corner_radius),
         stroke_width_(stroke_width),
         stroke_color_(stroke_color) {
     SetNativeControlColor(background_color);
   }
 
   virtual void Paint(gfx::Canvas* canvas, views::View* view) const {
     SkRect rect;
     rect.iset(0, 0, view->width(), view->height());
     SkPath path;
@@ skipping 54 matching lines @@
 
 views::Background* CreateRoundedBackground(int corner_radius,
                                            int stroke_width,
                                            SkColor background_color,
                                            SkColor stroke_color) {
   return new RoundedBackground(
       corner_radius, stroke_width, background_color, stroke_color);
 }
 
 }  // namespace chromeos