Broke out layout metric information from ViewsDelegate to LayoutProvider

ui/views/controls/button/md_text_button.cc

Index: ui/views/controls/button/md_text_button.cc
diff --git a/ui/views/controls/button/md_text_button.cc b/ui/views/controls/button/md_text_button.cc
index 4453f2a2aa72f428b0e7519f9061938bcb93d4fb..9e9e780ac00a6f6ac199c18ea9678fa9da2351c9 100644
--- a/ui/views/controls/button/md_text_button.cc
+++ b/ui/views/controls/button/md_text_button.cc
@@ -19,9 +19,9 @@
 #include "ui/views/border.h"
 #include "ui/views/controls/button/blue_button.h"
 #include "ui/views/controls/focus_ring.h"
+#include "ui/views/layout/layout_provider.h"
 #include "ui/views/painter.h"
 #include "ui/views/style/platform_style.h"
-#include "ui/views/views_delegate.h"
 
 namespace views {
 
@@ -193,8 +193,8 @@ MdTextButton::MdTextButton(ButtonListener* listener)
   set_has_ink_drop_action_on_click(true);
   SetHorizontalAlignment(gfx::ALIGN_CENTER);
   SetFocusForPlatform();
-  const int minimum_width = ViewsDelegate::GetInstance()->GetDistanceMetric(
-      DistanceMetric::DIALOG_BUTTON_MINIMUM_WIDTH);
+  const int minimum_width = LayoutProvider::Get()->GetDistanceMetric(
+      DISTANCE_DIALOG_BUTTON_MINIMUM_WIDTH);
   SetMinSize(gfx::Size(minimum_width, 0));
   SetFocusPainter(nullptr);
   label()->SetAutoColorReadabilityEnabled(false);
@@ -240,9 +240,8 @@ void MdTextButton::UpdatePadding() {
 
   // TODO(estade): can we get rid of the platform style border hoopla if
   // we apply the MD treatment to all buttons, even GTK buttons?
-  const int horizontal_padding =
-      ViewsDelegate::GetInstance()->GetDistanceMetric(
-          DistanceMetric::BUTTON_HORIZONTAL_PADDING);
+  const int horizontal_padding = LayoutProvider::Get()->GetDistanceMetric(
+      DISTANCE_BUTTON_HORIZONTAL_PADDING);
   SetBorder(CreateEmptyBorder(top_padding, horizontal_padding, bottom_padding,
                               horizontal_padding));
 }