Backed out changeset 614181fad27a (bug 1449064) for assertion failures on workspace/build/src/modules/libpref/Preferences.cpp

parser/html/nsHtml5TreeOpExecutor.cpp

@@ -13,7 +13,6 @@
 #include "mozAutoDocUpdate.h"
 #include "mozilla/IdleTaskRunner.h"
 #include "mozilla/Preferences.h"
-#include "mozilla/StaticPrefs.h"
 #include "mozilla/css/Loader.h"
 #include "nsContentUtils.h"
 #include "nsError.h"
@@ -923,10 +922,18 @@ nsHtml5TreeOpExecutor::GetViewSourceBaseURI()
   return mViewSourceBaseURI;
 }
 
+// static
+void
+nsHtml5TreeOpExecutor::InitializeStatics()
+{
+  mozilla::Preferences::AddBoolVarCache(&sExternalViewSource,
+                                        "view_source.editor.external");
+}
+
 bool
 nsHtml5TreeOpExecutor::IsExternalViewSource()
 {
-  if (!StaticPrefs::view_source_editor_external()) {
+  if (!sExternalViewSource) {
     return false;
   }
   bool isViewSource = false;
@@ -1185,3 +1192,4 @@ uint32_t nsHtml5TreeOpExecutor::sAppendBatchExaminations = 0;
 uint32_t nsHtml5TreeOpExecutor::sLongestTimeOffTheEventLoop = 0;
 uint32_t nsHtml5TreeOpExecutor::sTimesFlushLoopInterrupted = 0;
 #endif
+bool nsHtml5TreeOpExecutor::sExternalViewSource = false;