Revert of [Mac] Implement a new WebSandboxSupport method to get the display's color space.

content/renderer/renderer_webkitplatformsupport_impl.cc

Index: content/renderer/renderer_webkitplatformsupport_impl.cc
diff --git a/content/renderer/renderer_webkitplatformsupport_impl.cc b/content/renderer/renderer_webkitplatformsupport_impl.cc
index e607b5c3e3ff83ad21d0b9932ed7925bc64e3746..797285fc125d7174fbad4aca78548e04c28492f9 100644
--- a/content/renderer/renderer_webkitplatformsupport_impl.cc
+++ b/content/renderer/renderer_webkitplatformsupport_impl.cc
@@ -84,7 +84,6 @@
 #endif
 
 #if defined(OS_MACOSX)
-#include "base/mac/mac_util.h"
 #include "content/common/mac/font_descriptor.h"
 #include "content/common/mac/font_loader.h"
 #include "content/renderer/webscrollbarbehavior_impl_mac.h"
@@ -203,7 +202,6 @@
       NSFont* src_font,
       CGFontRef* container,
       uint32* font_id);
-  virtual CGColorSpaceRef displayColorSpace();
 #elif defined(OS_POSIX)
   virtual void getFallbackFontForCharacter(
       blink::WebUChar32 character,
@@ -573,11 +571,6 @@
   // activated, don't reactivate it here - crbug.com/72727 .
 
   return FontLoader::CGFontRefFromBuffer(font_data, font_data_size, out);
-}
-
-CGColorSpaceRef
-RendererWebKitPlatformSupportImpl::SandboxSupport::displayColorSpace() {
-  return base::mac::GetSystemColorSpace();
 }
 
 #elif defined(OS_ANDROID)