Revert of Monitor the system native frame color on Win 10.

chrome/browser/themes/theme_service.h

Index: chrome/browser/themes/theme_service.h
diff --git a/chrome/browser/themes/theme_service.h b/chrome/browser/themes/theme_service.h
index 7f4cf1e8f074ada397a488bab476f4f03260a51f..9eea41a91dca4aaa9516de321f3ad319815bc8bb 100644
--- a/chrome/browser/themes/theme_service.h
+++ b/chrome/browser/themes/theme_service.h
@@ -136,10 +136,6 @@
   // Returns true if the ThemeService should use the system theme on startup.
   virtual bool ShouldInitWithSystemTheme() const;
 
-  // Returns the color to use for |id| and |incognito| if the theme service does
-  // not provide an override.
-  virtual SkColor GetDefaultColor(int id, bool incognito) const;
-
   // Get the specified tint - |id| is one of the TINT_* enum values.
   color_utils::HSL GetTint(int id, bool incognito) const;
 
@@ -160,11 +156,6 @@
   // Clears the platform-specific caches. Do not call directly; it's called
   // from ClearAllThemeData().
   virtual void FreePlatformCaches();
-
-  // Implementation for ui::ThemeProvider (see block of functions in private
-  // section).
-  virtual bool ShouldUseNativeFrame() const;
-  bool HasCustomImage(int id) const;
 
   Profile* profile() const { return profile_; }
 
@@ -220,6 +211,8 @@
   gfx::ImageSkia* GetImageSkiaNamed(int id, bool incognito) const;
   SkColor GetColor(int id, bool incognito) const;
   int GetDisplayProperty(int id) const;
+  bool ShouldUseNativeFrame() const;
+  bool HasCustomImage(int id) const;
   base::RefCountedMemory* GetRawData(int id,
                                      ui::ScaleFactor scale_factor) const;
 #if defined(OS_MACOSX)