Revert "Support rounded rects that don't have the same radius on all 4 corners"

This reverts commit 64679b34.

Reason for revert: I need this functionality at another level of the stack (directly in Skia), reverting this not to add unnecessary complication.

Original change's description:
> Support rounded rects that don't have the same radius on all 4 corners
> 
> Bug: 805612
> Change-Id: I86af86a62fe2e46691db6bfb2b24da404c93ec1d
> Reviewed-on: https://chromium-review.googlesource.com/1130059
> Commit-Queue: Manu Cornet <manucornet@chromium.org>
> Reviewed-by: Xiaoqian Dai <xdai@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#573528}

TBR=xdai@chromium.org,manucornet@chromium.org

# Not skipping CQ checks because original CL landed > 1 day ago.

Bug: 805612
Change-Id: I6011952531594bba81c565e1a4bc004654399ece
Reviewed-on: https://chromium-review.googlesource.com/1188702Reviewed-by: Xiaoqian Dai <xdai@chromium.org>
Commit-Queue: Manu Cornet <manucornet@chromium.org>
Cr-Commit-Position: refs/heads/master@{#585881}

ash/wm/overview/rounded_rect_view.cc

@@ -10,33 +10,16 @@
 namespace ash {
 
 RoundedRectView::RoundedRectView(int corner_radius, SkColor background_color)
-    : RoundedRectView(corner_radius,
-                      corner_radius,
-                      corner_radius,
-                      corner_radius,
-                      background_color) {}
-
-RoundedRectView::RoundedRectView(int top_left_radius,
-                                 int top_right_radius,
-                                 int bottom_right_radius,
-                                 int bottom_left_radius,
-                                 SkColor background_color)
-    : top_left_radius_(top_left_radius),
-      top_right_radius_(top_right_radius),
-      bottom_right_radius_(bottom_right_radius),
-      bottom_left_radius_(bottom_left_radius),
-      background_color_(background_color) {}
+    : corner_radius_(corner_radius), background_color_(background_color) {}
 
 RoundedRectView::~RoundedRectView() = default;
 
 void RoundedRectView::OnPaint(gfx::Canvas* canvas) {
   views::View::OnPaint(canvas);
 
-  const SkScalar kRadius[8] = {
-      SkIntToScalar(top_left_radius_),     SkIntToScalar(top_left_radius_),
-      SkIntToScalar(top_right_radius_),    SkIntToScalar(top_right_radius_),
-      SkIntToScalar(bottom_right_radius_), SkIntToScalar(bottom_right_radius_),
-      SkIntToScalar(bottom_left_radius_),  SkIntToScalar(bottom_left_radius_)};
+  SkScalar radius = SkIntToScalar(corner_radius_);
+  const SkScalar kRadius[8] = {radius, radius, radius, radius,
+                               radius, radius, radius, radius};
   SkPath path;
   gfx::Rect bounds(size());
   path.addRoundRect(gfx::RectToSkRect(bounds), kRadius);
@@ -53,26 +36,12 @@ void RoundedRectView::SetBackgroundColor(SkColor background_color) {
   SchedulePaint();
 }
 
-void RoundedRectView::SetCornerRadius(int top_left_radius,
-                                      int top_right_radius,
-                                      int bottom_right_radius,
-                                      int bottom_left_radius) {
-  if (top_left_radius_ == top_left_radius &&
-      top_right_radius_ == top_right_radius &&
-      bottom_right_radius_ == bottom_right_radius &&
-      bottom_left_radius_ == bottom_left_radius) {
+void RoundedRectView::SetCornerRadius(int radius) {
+  if (corner_radius_ == radius)
     return;
-  }
 
-  top_left_radius_ = top_left_radius;
-  top_right_radius_ = top_right_radius;
-  bottom_right_radius_ = bottom_right_radius;
-  bottom_left_radius_ = bottom_left_radius;
+  corner_radius_ = radius;
   SchedulePaint();
 }
 
-void RoundedRectView::SetCornerRadius(int radius) {
-  SetCornerRadius(radius, radius, radius, radius);
-}
-
 }  // namespace ash

ash/wm/overview/rounded_rect_view.h

@@ -22,28 +22,16 @@ namespace ash {
 class RoundedRectView : public views::View {
  public:
   RoundedRectView(int corner_radius, SkColor background_color);
-  RoundedRectView(int top_left_radius,
-                  int top_right_radius,
-                  int bottom_right_radius,
-                  int bottom_left_radius,
-                  SkColor background_color);
   ~RoundedRectView() override;
 
   void SetBackgroundColor(SkColor background_color);
-  void SetCornerRadius(int top_left_radius,
-                       int top_right_radius,
-                       int bottom_right_radius,
-                       int bottom_left_radius);
   void SetCornerRadius(int radius);
 
   // views::View:
   void OnPaint(gfx::Canvas* canvas) override;
 
  private:
-  int top_left_radius_;
-  int top_right_radius_;
-  int bottom_right_radius_;
-  int bottom_left_radius_;
+  int corner_radius_;
   SkColor background_color_;
 
   DISALLOW_COPY_AND_ASSIGN(RoundedRectView);