Bug 1194856 - Load noscript.css and noframes.css from data: URLs in release builds. r=dbaron

layout/style/noframes.css

@@ -4,6 +4,9 @@
 
 /* This sheet is added to the style set for documents with frames disabled */
 
+/* Until bug 1194856 is fixed, if you update this file you should also update
+   the data: URL in nsLayoutStylesheetCache::NoFramesSheet(). */
+
 noframes {
   display: block;
 }

layout/style/noscript.css

@@ -4,6 +4,9 @@
 
 /* This sheet is added to the style set for documents with script disabled */
 
+/* Until bug 1194856 is fixed, if you update this file you should also update
+   the data: URL in nsLayoutStylesheetCache::NoScriptSheet(). */
+
 noscript {
   display: none !important;
 }

layout/style/nsLayoutStylesheetCache.cpp

@@ -198,7 +198,13 @@ nsLayoutStylesheetCache::NoScriptSheet()
   EnsureGlobal();
 
   if (!gStyleCache->mNoScriptSheet) {
-    LoadSheetURL("resource://gre-resources/noscript.css",
+    // If you update the data: URL, also update noscript.css  (See bug 1194856.)
+    LoadSheetURL(
+#ifdef RELEASE_BUILD
+                 "data:text/css,noscript { display%3A none !important%3B }",
+#else
+                 "resource://gre-resources/noscript.css",
+#endif
                  gStyleCache->mNoScriptSheet, true);
   }
 
@@ -211,7 +217,14 @@ nsLayoutStylesheetCache::NoFramesSheet()
   EnsureGlobal();
 
   if (!gStyleCache->mNoFramesSheet) {
-    LoadSheetURL("resource://gre-resources/noframes.css",
+    // If you update the data: URL, also update noframes.css  (See bug 1194856.)
+    LoadSheetURL(
+#ifdef RELEASE_BUILD
+                 "data:text/css,noframes { display%3A block%3B } "
+                 "frame%2C frameset%2C iframe { display%3A none !important%3B }",
+#else
+                 "resource://gre-resources/noframes.css",
+#endif
                  gStyleCache->mNoFramesSheet, true);
   }