Revert "CSS: Drop the quirks-mode exception for CSS MIME types."

Source/core/inspector/InspectorPageAgent.cpp

Index: Source/core/inspector/InspectorPageAgent.cpp
diff --git a/Source/core/inspector/InspectorPageAgent.cpp b/Source/core/inspector/InspectorPageAgent.cpp
index 244275d7f2497f6aa10634d58eee48444f810036..da3b1a634f6133ba392fbf28d647d04934c2aa18 100644
--- a/Source/core/inspector/InspectorPageAgent.cpp
+++ b/Source/core/inspector/InspectorPageAgent.cpp
@@ -287,7 +287,7 @@ bool InspectorPageAgent::cachedResourceContent(Resource* cachedResource, String*
     if (cachedResource) {
         switch (cachedResource->type()) {
         case Resource::CSSStyleSheet:
-            *result = toCSSStyleSheetResource(cachedResource)->sheetText();
+            *result = toCSSStyleSheetResource(cachedResource)->sheetText(false);
             return true;
         case Resource::Script:
             *result = cachedResource->resourceBuffer() ? toScriptResource(cachedResource)->decodedText() : toScriptResource(cachedResource)->script();