[WPF, GTK, TIZEN] Replace obsolete OutlineColor by BorderColor (#1443)

Xamarin.Forms.Platform.GTK/Renderers/FrameRenderer.cs

@@ -35,7 +35,7 @@ namespace Xamarin.Forms.Platform.GTK.Renderers
                 PackChild();
             }
             if (e.PropertyName == VisualElement.BackgroundColorProperty.PropertyName ||
-                e.PropertyName == Frame.OutlineColorProperty.PropertyName ||
+                e.PropertyName == Frame.BorderColorProperty.PropertyName ||
                 e.PropertyName == Frame.HasShadowProperty.PropertyName)
                 SetupLayer();
         }
@@ -47,10 +47,10 @@ namespace Xamarin.Forms.Platform.GTK.Renderers
             else
                 Control.SetBackgroundColor(Element.BackgroundColor.ToGtkColor());
 
-            if (Element.OutlineColor == Color.Default)
+            if (Element.BorderColor == Color.Default)
                 Control.ResetBorderColor();
             else
-                Control.SetBorderColor(Element.OutlineColor.ToGtkColor());
+                Control.SetBorderColor(Element.BorderColor.ToGtkColor());
 
             if (Element.HasShadow)
                 Control.SetShadow();

Xamarin.Forms.Platform.Tizen/Renderers/FrameRenderer.cs

@@ -17,7 +17,7 @@ namespace Xamarin.Forms.Platform.Tizen
 
 		public FrameRenderer()
 		{
-			RegisterPropertyHandler(Frame.OutlineColorProperty, UpdateColor);
+			RegisterPropertyHandler(Frame.BorderColorProperty, UpdateColor);
 			RegisterPropertyHandler(Frame.HasShadowProperty, UpdateShadowVisibility);
 		}
 
@@ -105,10 +105,10 @@ namespace Xamarin.Forms.Platform.Tizen
 
 		void UpdateColor()
 		{
-			if (Element.OutlineColor.IsDefault)
+			if (Element.BorderColor.IsDefault)
 				_frame.Color = s_DefaultColor;
 			else
-				_frame.Color = Element.OutlineColor.ToNative();
+				_frame.Color = Element.BorderColor.ToNative();
 		}
 
 		void UpdateShadowVisibility()

Xamarin.Forms.Platform.WPF/Renderers/FrameRenderer.cs

@@ -37,7 +37,7 @@ namespace Xamarin.Forms.Platform.WPF
 
 			if (e.PropertyName == Frame.ContentProperty.PropertyName)
 				UpdateContent();
-			else if (e.PropertyName == Frame.OutlineColorProperty.PropertyName || e.PropertyName == Frame.HasShadowProperty.PropertyName)
+			else if (e.PropertyName == Frame.BorderColorProperty.PropertyName || e.PropertyName == Frame.HasShadowProperty.PropertyName)
 				UpdateBorder();
 			else if (e.PropertyName == Frame.CornerRadiusProperty.PropertyName)
 				UpdateCornerRadius();
@@ -61,9 +61,9 @@ namespace Xamarin.Forms.Platform.WPF
 
 		void UpdateBorder()
 		{
-			if (Element.OutlineColor != Color.Default)
+			if (Element.BorderColor != Color.Default)
 			{
-				Control.UpdateDependencyColor(Border.BorderBrushProperty, Element.OutlineColor);
+				Control.UpdateDependencyColor(Border.BorderBrushProperty, Element.BorderColor);
 				Control.BorderThickness = new System.Windows.Thickness(1);
 			}
 			else