color_utils cleanup:

chrome/browser/ui/libgtk2ui/gtk2_ui.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 "chrome/browser/ui/libgtk2ui/gtk2_ui.h"
 
 #include <math.h>
 #include <pango/pango.h>
 #include <set>
 #include <utility>
@@ skipping 886 matching lines @@
   UpdateDefaultFont();
 
   // Build the various icon tints.
   GetNormalButtonTintHSL(&button_tint_);
   GetNormalEntryForegroundHSL(&entry_tint_);
   GetSelectedEntryForegroundHSL(&selected_entry_tint_);
   SkColor frame_color = BuildFrameColors();
 
   if (ui::MaterialDesignController::IsModeMaterial()) {
     colors_[ThemeProperties::COLOR_BACKGROUND_TAB_TEXT] =
-        color_utils::BlendTowardOppositeLuminance(label_color, 50);
+        color_utils::BlendTowardOppositeLuma(label_color, 50);
   } else {
     // The inactive frame color never occurs naturally in the theme, as it is a
     // tinted version of |frame_color|. We generate another color based on the
     // background tab color, with the lightness and saturation moved in the
     // opposite direction. (We don't touch the hue, since there should be subtle
     // hints of the color in the text.)
     color_utils::HSL inactive_tab_text_hsl;
     color_utils::SkColorToHSL(
         theme->GetSystemColor(ui::NativeTheme::kColorId_WindowBackground),
         &inactive_tab_text_hsl);
@@ skipping 461 matching lines @@
   // Blacklist scaling factors <130% (crbug.com/484400) and round
   // to 1 decimal to prevent rendering problems (crbug.com/485183).
   return scale < 1.3f ? 1.0f : roundf(scale * 10) / 10;
 }
 
 }  // namespace libgtk2ui
 
 views::LinuxUI* BuildGtk2UI() {
   return new libgtk2ui::Gtk2UI;
 }