Bug 1633820 - Part 3: Get rid of PBrowserOrId, r=mattwoodrow,necko-reviewers,dragana

The 'Id' variant was only used with b2g for remote `mozbrowser`s, and is no
longer relevant. The new code instead uses `PBrowser` directly in all cases.

Differential Revision: https://phabricator.services.mozilla.com/D72933

docshell/base/LoadContext.cpp

@@ -10,6 +10,7 @@
 #include "mozilla/Preferences.h"
 #include "mozilla/dom/Element.h"
 #include "mozilla/dom/ScriptSettings.h"  // for AutoJSAPI
+#include "mozilla/dom/BrowsingContext.h"
 #include "nsContentUtils.h"
 #include "xpcpublic.h"
 
@@ -17,6 +18,32 @@ namespace mozilla {
 
 NS_IMPL_ISUPPORTS(LoadContext, nsILoadContext, nsIInterfaceRequestor)
 
+LoadContext::LoadContext(const IPC::SerializedLoadContext& aToCopy,
+                         dom::Element* aTopFrameElement,
+                         OriginAttributes& aAttrs)
+    : mTopFrameElement(do_GetWeakReference(aTopFrameElement)),
+      mIsContent(aToCopy.mIsContent),
+      mUseRemoteTabs(aToCopy.mUseRemoteTabs),
+      mUseRemoteSubframes(aToCopy.mUseRemoteSubframes),
+      mUseTrackingProtection(aToCopy.mUseTrackingProtection),
+#ifdef DEBUG
+      mIsNotNull(aToCopy.mIsNotNull),
+#endif
+      mOriginAttributes(aAttrs) {
+}
+
+LoadContext::LoadContext(OriginAttributes& aAttrs)
+    : mTopFrameElement(nullptr),
+      mIsContent(false),
+      mUseRemoteTabs(false),
+      mUseRemoteSubframes(false),
+      mUseTrackingProtection(false),
+#ifdef DEBUG
+      mIsNotNull(true),
+#endif
+      mOriginAttributes(aAttrs) {
+}
+
 LoadContext::LoadContext(nsIPrincipal* aPrincipal,
                          nsILoadContext* aOptionalBase)
     : mTopFrameElement(nullptr),
@@ -40,6 +67,8 @@ LoadContext::LoadContext(nsIPrincipal* aPrincipal,
       aOptionalBase->GetUseTrackingProtection(&mUseTrackingProtection));
 }
 
+LoadContext::~LoadContext() = default;
+
 //-----------------------------------------------------------------------------
 // LoadContext::nsILoadContext
 //-----------------------------------------------------------------------------