Remove deprecated gfx::Image::operator NSImage*().

chrome/browser/themes/theme_service_mac.mm

Index: chrome/browser/themes/theme_service_mac.mm
diff --git a/chrome/browser/themes/theme_service_mac.mm b/chrome/browser/themes/theme_service_mac.mm
index 61f57d089865ba5bfc982cfc55f36c62ff248172..0cbe655f44f23d5b4b8f1f3591e39e9308d1aa36 100644
--- a/chrome/browser/themes/theme_service_mac.mm
+++ b/chrome/browser/themes/theme_service_mac.mm
@@ -51,13 +51,13 @@ NSImage* ThemeService::GetNSImageNamed(int id, bool allow_default) const {
   if (theme_pack_.get()) {
     const gfx::Image* image = theme_pack_->GetImageNamed(id);
     if (image)
-      nsimage = *image;
+      nsimage = image->ToNSImage();
   }
 
   // If the theme didn't override this image then load it from the resource
   // bundle.
   if (!nsimage) {
-    nsimage = rb_.GetNativeImageNamed(id);
+    nsimage = rb_.GetNativeImageNamed(id).ToNSImage();
   }
 
   // We loaded successfully.  Cache the image.