Bug 1377158 - (Part 2) Add style backend type member in SVGDocumentWrapper and create SVG document with specified style backend. r=heycam

MozReview-Commit-ID: 7CRBzWcrtIc

--HG--
extra : rebase_source : f2ba1e5b00133852d7f6099e1d6d876caa3092e1

image/SVGDocumentWrapper.cpp

@@ -22,6 +22,8 @@
 #include "nsIXMLContentSink.h"
 #include "nsNetCID.h"
 #include "nsComponentManagerUtils.h"
+#include "nsContentDLF.h"
+#include "nsContentCID.h"
 #include "nsSMILAnimationController.h"
 #include "nsServiceManagerUtils.h"
 #include "mozilla/dom/SVGSVGElement.h"
@@ -48,8 +50,9 @@ NS_IMPL_ISUPPORTS(SVGDocumentWrapper,
                   nsIObserver,
                   nsISupportsWeakReference)
 
-SVGDocumentWrapper::SVGDocumentWrapper()
-  : mIgnoreInvalidation(false),
+SVGDocumentWrapper::SVGDocumentWrapper(StyleBackendType aStyleBackendType /* = StyleBackendType::None */)
+  : mStyleBackendType(aStyleBackendType),
+    mIgnoreInvalidation(false),
     mRegisteredForXPCOMShutdown(false)
 { }
 
@@ -345,7 +348,7 @@ SVGDocumentWrapper::SetupViewer(nsIRequest* aRequest,
                                         newLoadGroup,
                                         NS_LITERAL_CSTRING(IMAGE_SVG_XML),
                                         nullptr, nullptr,
-                                        nsIDocumentLoaderFactory::STYLE_BACKEND_TYPE_NONE,
+                                        (int16_t)mStyleBackendType,
                                         getter_AddRefs(listener),
                                         getter_AddRefs(viewer));
   NS_ENSURE_SUCCESS(rv, rv);

image/SVGDocumentWrapper.h

@@ -9,6 +9,7 @@
 #define mozilla_image_SVGDocumentWrapper_h
 
 #include "mozilla/Attributes.h"
+#include "mozilla/StyleBackendType.h"
 
 #include "nsCOMPtr.h"
 #include "nsIStreamListener.h"
@@ -39,7 +40,7 @@ class SVGDocumentWrapper final : public nsIStreamListener,
                                  nsSupportsWeakReference
 {
 public:
-  SVGDocumentWrapper();
+  explicit SVGDocumentWrapper(StyleBackendType aStyleBackendType = StyleBackendType::None);
 
   NS_DECL_ISUPPORTS
   NS_DECL_NSISTREAMLISTENER
@@ -141,6 +142,7 @@ private:
   nsCOMPtr<nsIContentViewer>  mViewer;
   nsCOMPtr<nsILoadGroup>      mLoadGroup;
   nsCOMPtr<nsIStreamListener> mListener;
+  StyleBackendType            mStyleBackendType;
   bool                        mIgnoreInvalidation;
   bool                        mRegisteredForXPCOMShutdown;
 };