Bug 1373525 - dom: Remove some unused member functions. r=billm

dom/asmjscache/AsmJSCache.cpp:371:3 [-Wunused-member-function] unused member function 'IsOnOwningThread'
dom/cache/DBSchema.cpp:303:3 [-Wunused-member-function] unused member function 'IdCount'
dom/filesystem/GetFilesHelper.cpp:26:3 [-Wunused-member-function] unused member function 'ReleaseRunnable'
dom/webbrowserpersist/WebBrowserPersistLocalDocument.cpp:298:10 [-Wunused-member-function] unused member function 'IsFlagSet'

MozReview-Commit-ID: 2A11iqF7u9X

--HG--
extra : source : abc07611c7cc994685cf151a47c90e3e9d3712a1
extra : intermediate-source : 44a7cfc31d995c50846aec3050514aea70ba2e2f
extra : histedit_source : 2ed361299e763d969619d3916ff20d9553d620f2

dom/asmjscache/AsmJSCache.cpp

@@ -367,6 +367,7 @@ private:
     MOZ_ASSERT(mActorDestroyed);
   }
 
+#ifdef DEBUG
   bool
   IsOnOwningThread() const
   {
@@ -375,6 +376,7 @@ private:
     bool current;
     return NS_SUCCEEDED(mOwningEventTarget->IsOnCurrentThread(&current)) && current;
   }
+#endif
 
   void
   AssertIsOnOwningThread() const

dom/cache/DBSchema.cpp

@@ -300,7 +300,6 @@ typedef int32_t EntryId;
 
 struct IdCount
 {
-  IdCount() : mId(-1), mCount(0) { }
   explicit IdCount(int32_t aId) : mId(aId), mCount(1) { }
   int32_t mId;
   int32_t mCount;

dom/filesystem/GetFilesHelper.cpp

@@ -23,10 +23,6 @@ namespace {
 class ReleaseRunnable final : public Runnable
 {
 public:
-  ReleaseRunnable()
-    : Runnable("ReleaseRunnable")
-  {}
-
   static void
   MaybeReleaseOnMainThread(nsTArray<RefPtr<Promise>>& aPromises,
                            nsTArray<RefPtr<GetFilesCallback>>& aCallbacks,
@@ -61,6 +57,7 @@ private:
                   nsTArray<RefPtr<GetFilesCallback>>& aCallbacks,
                   Sequence<RefPtr<File>>& aFiles,
                   already_AddRefed<nsIGlobalObject> aGlobal)
+    : Runnable("ReleaseRunnable")
   {
     mPromises.SwapElements(aPromises);
     mCallbacks.SwapElements(aCallbacks);

dom/webbrowserpersist/WebBrowserPersistLocalDocument.cpp

@@ -255,7 +255,6 @@ WebBrowserPersistLocalDocument::GetBaseURI() const
     return mDocument->GetBaseURI();
 }
 
-
 namespace {
 
 // Helper class for ReadResources().
@@ -295,10 +294,6 @@ private:
                              const char* aNamespaceURI = "");
     nsresult OnWalkSubframe(nsIDOMNode* aNode);
 
-    bool IsFlagSet(uint32_t aFlag) const {
-        return mParent->GetPersistFlags() & aFlag;
-    }
-
     ~ResourceReader();
 
     using IWBP = nsIWebBrowserPersist;