Bug 1342289 Part 1: Define UUID for ServoStyleSheet. r=heycam

MozReview-Commit-ID: GVUcZ7L0Ro5

--HG--
extra : rebase_source : cb85b6f04fe27de7c6a246e52afa6eb07a61c6ed

layout/style/ServoStyleSheet.cpp

@@ -15,7 +15,9 @@
 #include "mozilla/dom/CSSRuleList.h"
 #include "mozilla/dom/MediaList.h"
 
+
 #include "mozAutoDocUpdate.h"
+#include "nsIDOMCSSStyleSheet.h"
 
 using namespace mozilla::dom;
 
@@ -71,6 +73,10 @@ ServoStyleSheet::~ServoStyleSheet()
 
 // QueryInterface implementation for ServoStyleSheet
 NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION_INHERITED(ServoStyleSheet)
+  NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIDOMCSSStyleSheet)
+  if (aIID.Equals(NS_GET_IID(ServoStyleSheet)))
+    foundInterface = reinterpret_cast<nsISupports*>(this);
+  else
 NS_INTERFACE_MAP_END_INHERITING(StyleSheet)
 
 NS_IMPL_ADDREF_INHERITED(ServoStyleSheet, StyleSheet)

layout/style/ServoStyleSheet.h

@@ -50,6 +50,14 @@ struct ServoStyleSheetInner : public StyleSheetInfo
 /**
  * CSS style sheet object that is a wrapper for a Servo Stylesheet.
  */
+
+// CID for the ServoStyleSheet class
+// a6f31472-ab69-4beb-860f-c221431ead77
+#define NS_SERVO_STYLE_SHEET_IMPL_CID     \
+{ 0xa6f31472, 0xab69, 0x4beb, \
+  { 0x86, 0x0f, 0xc2, 0x21, 0x43, 0x1e, 0xad, 0x77 } }
+
+
 class ServoStyleSheet : public StyleSheet
 {
 public:
@@ -61,6 +69,8 @@ public:
   NS_DECL_ISUPPORTS_INHERITED
   NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(ServoStyleSheet, StyleSheet)
 
+  NS_DECLARE_STATIC_IID_ACCESSOR(NS_SERVO_STYLE_SHEET_IMPL_CID)
+
   bool HasRules() const;
 
   MOZ_MUST_USE nsresult ParseSheet(css::Loader* aLoader,
@@ -143,6 +153,8 @@ private:
   friend class StyleSheet;
 };
 
+NS_DEFINE_STATIC_IID_ACCESSOR(ServoStyleSheet, NS_SERVO_STYLE_SHEET_IMPL_CID)
+
 } // namespace mozilla
 
 #endif // mozilla_ServoStyleSheet_h