Bug 1685832 - Remove some includes from PreloadService.h. r=smaug

Differential Revision: https://phabricator.services.mozilla.com/D101249

dom/xhr/XMLHttpRequestMainThread.cpp

@@ -36,6 +36,7 @@
 #include "mozilla/LoadInfo.h"
 #include "mozilla/LoadContext.h"
 #include "mozilla/MemoryReporting.h"
+#include "mozilla/PreloaderBase.h"
 #include "mozilla/SpinEventLoopUntil.h"
 #include "mozilla/StaticPrefs_dom.h"
 #include "mozilla/StaticPrefs_network.h"

uriloader/preload/PreloadService.cpp

@@ -6,16 +6,21 @@
 #include "PreloadService.h"
 
 #include "FetchPreloader.h"
+#include "PreloaderBase.h"
 #include "mozilla/AsyncEventDispatcher.h"
 #include "mozilla/dom/WindowGlobalChild.h"
 #include "mozilla/dom/HTMLLinkElement.h"
 #include "mozilla/dom/ScriptLoader.h"
+#include "mozilla/Encoding.h"
 #include "mozilla/FontPreloader.h"
 #include "mozilla/StaticPrefs_network.h"
 #include "nsNetUtil.h"
 
 namespace mozilla {
 
+PreloadService::PreloadService(dom::Document* aDoc) : mDocument(aDoc) {}
+PreloadService::~PreloadService() = default;
+
 bool PreloadService::RegisterPreload(const PreloadHashKey& aKey,
                                      PreloaderBase* aPreload) {
   if (PreloadExists(aKey)) {

uriloader/preload/PreloadService.h

@@ -9,10 +9,14 @@
 #include "nsIContentPolicy.h"
 #include "nsIURI.h"
 #include "nsRefPtrHashtable.h"
-#include "PreloaderBase.h"
+#include "mozilla/PreloadHashKey.h"
+
+class nsINode;
 
 namespace mozilla {
 
+class PreloaderBase;
+
 namespace dom {
 
 class HTMLLinkElement;
@@ -31,7 +35,8 @@ enum class SheetPreloadStatus : uint8_t;
  */
 class PreloadService {
  public:
-  explicit PreloadService(dom::Document* aDocument) : mDocument(aDocument) {}
+  explicit PreloadService(dom::Document*);
+  ~PreloadService();
 
   // Called by resource loaders to register a running resource load.  This is
   // called for a speculative load when it's started the first time, being it