Add SetProminent() to MdTextButton to create blue buttons.

ui/views/controls/tabbed_pane/tabbed_pane.cc

 // Copyright (c) 2012 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 "ui/views/controls/tabbed_pane/tabbed_pane.h"
 
 #include "base/logging.h"
 #include "base/macros.h"
 #include "third_party/skia/include/core/SkPaint.h"
 #include "third_party/skia/include/core/SkPath.h"
@@ skipping 253 matching lines @@
 void MdTab::OnStateChanged() {
   ui::NativeTheme* theme = GetNativeTheme();
   SkColor border_color = theme->GetSystemColor(
       selected() ? ui::NativeTheme::kColorId_FocusedBorderColor
                  : ui::NativeTheme::kColorId_UnfocusedBorderColor);
   int border_thickness = selected() ? 2 : 1;
   SetBorder(
       Border::CreateSolidSidedBorder(0, 0, border_thickness, 0, border_color));
 
   SkColor font_color = selected()
-      ? theme->GetSystemColor(ui::NativeTheme::kColorId_CallToActionColor)
+      ? theme->GetSystemColor(ui::NativeTheme::kColorId_ProminentButtonColor)
       : theme->GetSystemColor(ui::NativeTheme::kColorId_ButtonEnabledColor);
   title()->SetEnabledColor(font_color);
 
   gfx::Font::Weight font_weight = gfx::Font::Weight::MEDIUM;
 #if defined(OS_WIN)
   if (selected())
     font_weight = gfx::Font::Weight::BOLD;
 #endif
 
   ui::ResourceBundle& rb = ui::ResourceBundle::GetSharedInstance();
@@ skipping 234 matching lines @@
     selected_tab->NotifyAccessibilityEvent(
         ui::AX_EVENT_FOCUS, true);
   }
 }
 
 void TabbedPane::GetAccessibleState(ui::AXViewState* state) {
   state->role = ui::AX_ROLE_TAB_LIST;
 }
 
 }  // namespace views