Fixed hover highlight for the tab close button

Bug: 839000
Change-Id: I000a3aae3e5c9373baadc9f3c4d693e91ae07725
Reviewed-on: https://chromium-review.googlesource.com/1040671Reviewed-by: Bret Sepulveda <bsep@chromium.org>
Commit-Queue: Allen Bauer <kylixrd@chromium.org>
Cr-Commit-Position: refs/heads/master@{#555545}

chrome/browser/ui/views/tabs/tab_close_button.cc

@@ -155,7 +155,7 @@ void TabCloseButton::GenerateImages(bool is_touch,
           : normal;
 
   const gfx::ImageSkia& hover_highlight =
-      gfx::CreateVectorIcon(highlight, hover_pressed_icon_color);
+      gfx::CreateVectorIcon(highlight, hover_highlight_color);
   const gfx::ImageSkia& pressed_highlight =
       gfx::CreateVectorIcon(highlight, pressed_highlight_color);
   const gfx::ImageSkia& hover =