[linux_views][Win] spoof proof redesign infobar extension with tab.

chrome/browser/ui/views/infobars/infobar_background.cc

 // Copyright (c) 2011 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/ui/views/infobars/infobar_background.h"
 
+#include "chrome/browser/ui/views/infobars/infobar_view.h"
 #include "ui/base/resource/resource_bundle.h"
 #include "ui/gfx/canvas.h"
+#include "ui/gfx/canvas_skia_paint.h"
+#include "third_party/skia/include/effects/SkGradientShader.h"
 #include "views/view.h"
 
 // static
 const int InfoBarBackground::kSeparatorLineHeight = 1;
 
-InfoBarBackground::InfoBarBackground(InfoBarDelegate::Type infobar_type) {
-  gradient_background_.reset(
-      views::Background::CreateVerticalGradientBackground(
-          GetTopColor(infobar_type),
-          GetBottomColor(infobar_type)));
+InfoBarBackground::InfoBarBackground(InfoBarDelegate::Type infobar_type)
+    : top_color_(GetTopColor(infobar_type)),
+      bottom_color_(GetBottomColor(infobar_type)) {
 }
 
 InfoBarBackground::~InfoBarBackground() {
 }
 
 SkColor InfoBarBackground::GetTopColor(InfoBarDelegate::Type infobar_type) {
   static const SkColor kWarningBackgroundColorTop =
       SkColorSetRGB(255, 242, 183);
   static const SkColor kPageActionBackgroundColorTop =
       SkColorSetRGB(218, 231, 249);
 
   return (infobar_type == InfoBarDelegate::WARNING_TYPE) ?
       kWarningBackgroundColorTop : kPageActionBackgroundColorTop;
 }
 
 SkColor InfoBarBackground::GetBottomColor(InfoBarDelegate::Type infobar_type) {
   static const SkColor kWarningBackgroundColorBottom =
       SkColorSetRGB(250, 230, 145);
   static const SkColor kPageActionBackgroundColorBottom =
       SkColorSetRGB(179, 202, 231);
 
   return (infobar_type == InfoBarDelegate::WARNING_TYPE) ?
       kWarningBackgroundColorBottom : kPageActionBackgroundColorBottom;
 }
 
 void InfoBarBackground::Paint(gfx::Canvas* canvas, views::View* view) const {
-  gradient_background_->Paint(canvas, view);
+  SkPoint gradient_points[2] = {
+    {SkIntToScalar(0), SkIntToScalar(0)},
+    {SkIntToScalar(0), SkIntToScalar(view->height())}
+  };
+  SkColor gradient_colors[2] = {
+    top_color_,
+    bottom_color_
+  };
+  SkShader* gradient_shader =
+      SkGradientShader::CreateLinear(gradient_points, gradient_colors,
+                                     NULL, 2, SkShader::kClamp_TileMode);
+  SkPaint paint;
+  paint.setStrokeWidth(SkIntToScalar(InfoBarView::kTabStrokeWidth));
+  paint.setStyle(SkPaint::kFill_Style);
+  paint.setShader(gradient_shader);
+  paint.setAntiAlias(true);
+  gradient_shader->unref();
+
+  InfoBarView* infobar = static_cast<InfoBarView*>(view);
+  gfx::CanvasSkia* canvas_skia = canvas->AsCanvasSkia();
+  canvas_skia->drawPath(*infobar->fill_path(), paint);
+
+  paint.setShader(NULL);
+  paint.setColor(SkColorSetA(ResourceBundle::toolbar_separator_color,
+                             SkColorGetA(gradient_colors[0])));
+  paint.setStyle(SkPaint::kStroke_Style);
+  canvas_skia->drawPath(*infobar->stroke_path(), paint);
+
+  // Now draw at the bottom.
   canvas->FillRectInt(ResourceBundle::toolbar_separator_color, 0,
                       view->height() - kSeparatorLineHeight, view->width(),
                       kSeparatorLineHeight);
 }