Bug 865729 - Remove nsIJSContextStack from content/foo. r=gabor

We leave it in nsContentUtils.cpp, which we'll handle in a separate patch.

content/base/src/Element.cpp

@@ -73,7 +73,6 @@
 #include "nsLayoutUtils.h"
 #include "nsGkAtoms.h"
 #include "nsContentUtils.h"
-#include "nsIJSContextStack.h"
 
 #include "nsIDOMEventListener.h"
 #include "nsIWebNavigation.h"

content/base/src/EventSource.cpp

@@ -12,7 +12,6 @@
 #include "nsNetUtil.h"
 #include "nsMimeTypes.h"
 #include "nsDOMMessageEvent.h"
-#include "nsIJSContextStack.h"
 #include "nsIPromptFactory.h"
 #include "nsIWindowWatcher.h"
 #include "nsPresContext.h"
@@ -201,10 +200,8 @@ EventSource::Init(nsISupports* aOwner,
   mWithCredentials = aWithCredentials;
   BindToOwner(ownerWindow);
 
-  nsCOMPtr<nsIJSContextStack> stack =
-    do_GetService("@mozilla.org/js/xpc/ContextStack;1");
-  JSContext* cx = nullptr;
-  if (stack && NS_SUCCEEDED(stack->Peek(&cx)) && cx) {
+  // The conditional here is historical and not necessarily sane.
+  if (JSContext *cx = nsContentUtils::GetCurrentJSContext()) {
     const char *filename;
     if (nsJSUtils::GetCallingLocation(cx, &filename, &mScriptLine)) {
       mScriptFile.AssignASCII(filename);

content/base/src/FragmentOrElement.cpp

@@ -72,7 +72,6 @@
 #include "nsLayoutUtils.h"
 #include "nsGkAtoms.h"
 #include "nsContentUtils.h"
-#include "nsIJSContextStack.h"
 
 #include "nsIDOMEventListener.h"
 #include "nsIWebNavigation.h"

content/base/src/WebSocket.cpp

@@ -32,7 +32,6 @@
 #include "nsIDOMCloseEvent.h"
 #include "nsICryptoHash.h"
 #include "jsdbgapi.h"
-#include "nsIJSContextStack.h"
 #include "nsJSUtils.h"
 #include "nsIScriptError.h"
 #include "nsNetUtil.h"

content/base/src/nsDOMFileReader.cpp

@@ -28,7 +28,6 @@
 #include "nsStreamUtils.h"
 #include "nsXPCOM.h"
 #include "nsIDOMEventListener.h"
-#include "nsIJSContextStack.h"
 #include "nsJSEnvironment.h"
 #include "nsIScriptGlobalObject.h"
 #include "nsCExternalHandlerService.h"

content/base/src/nsDocument.cpp

@@ -124,7 +124,6 @@
 #include "nsDOMCID.h"
 
 #include "jsapi.h"
-#include "nsIJSContextStack.h"
 #include "nsIXPConnect.h"
 #include "nsCycleCollector.h"
 #include "nsCCUncollectableMarker.h"

content/base/src/nsFrameLoader.cpp

@@ -34,7 +34,6 @@
 #include "nsIBaseWindow.h"
 #include "nsContentUtils.h"
 #include "nsIXPConnect.h"
-#include "nsIJSContextStack.h"
 #include "nsUnicharUtils.h"
 #include "nsIScriptGlobalObject.h"
 #include "nsIScriptSecurityManager.h"

content/base/src/nsFrameMessageManager.cpp

@@ -19,7 +19,6 @@
 #include "nsNetUtil.h"
 #include "nsScriptLoader.h"
 #include "nsFrameLoader.h"
-#include "nsIJSContextStack.h"
 #include "nsIXULRuntime.h"
 #include "nsIScriptError.h"
 #include "nsIConsoleService.h"
@@ -630,10 +629,10 @@ nsFrameMessageManager::ReceiveMessage(nsISupports* aTarget,
                                       InfallibleTArray<nsString>* aJSONRetVal,
                                       JSContext* aContext)
 {
-  JSContext* ctx = mContext ? mContext : aContext;
-  if (!ctx) {
-    ctx = nsContentUtils::ThreadJSContextStack()->GetSafeJSContext();
-  }
+  JSContext *cxToUse = mContext ? mContext
+                                : (aContext ? aContext
+                                            : nsContentUtils::GetSafeJSContext());
+  AutoPushJSContext ctx(cxToUse);
   if (mListeners.Length()) {
     nsCOMPtr<nsIAtom> name = do_GetAtom(aMessage);
     MMListenerRemover lr(this);
@@ -976,17 +975,10 @@ void
 nsFrameScriptExecutor::Shutdown()
 {
   if (sCachedScripts) {
-    JSContext* cx = nsContentUtils::ThreadJSContextStack()->GetSafeJSContext();
-    if (cx) {
-#ifdef DEBUG_smaug
-      printf("Will clear cached frame manager scripts!\n");
-#endif
+    SafeAutoJSContext cx;
     JSAutoRequest ar(cx);
     NS_ASSERTION(sCachedScripts != nullptr, "Need cached scripts");
     sCachedScripts->Enumerate(CachedScriptUnrooter, cx);
-    } else {
-      NS_WARNING("No context available. Leaking cached scripts!\n");
-    }
 
     delete sCachedScripts;
     sCachedScripts = nullptr;

content/base/src/nsINode.cpp

@@ -62,7 +62,6 @@
 #include "nsIEditor.h"
 #include "nsIEditorIMESupport.h"
 #include "nsIFrame.h"
-#include "nsIJSContextStack.h"
 #include "nsILinkHandler.h"
 #include "nsINameSpaceManager.h"
 #include "nsINodeInfo.h"

content/base/src/nsInProcessTabChildGlobal.cpp

@@ -15,7 +15,6 @@
 #include "nsComponentManagerUtils.h"
 #include "nsNetUtil.h"
 #include "nsScriptLoader.h"
-#include "nsIJSContextStack.h"
 #include "nsFrameLoader.h"
 #include "xpcpublic.h"
 #include "nsIMozBrowserFrame.h"

content/base/src/nsObjectLoadingContent.cpp

@@ -24,7 +24,6 @@
 #include "nsIPermissionManager.h"
 #include "nsPluginHost.h"
 #include "nsJSNPRuntime.h"
-#include "nsIJSContextStack.h"
 #include "nsIPresShell.h"
 #include "nsIScriptGlobalObject.h"
 #include "nsIScriptSecurityManager.h"

content/base/src/nsXMLHttpRequest.cpp

@@ -26,7 +26,6 @@
 #include "nsGUIEvent.h"
 #include "prprf.h"
 #include "nsIDOMEventListener.h"
-#include "nsIJSContextStack.h"
 #include "nsIScriptSecurityManager.h"
 #include "nsWeakPtr.h"
 #include "nsIScriptGlobalObject.h"

content/canvas/src/WebGLContextUtils.cpp

@@ -9,7 +9,6 @@
 
 #include "prprf.h"
 
-#include "nsIJSContextStack.h"
 #include "jsapi.h"
 #include "nsIScriptSecurityManager.h"
 #include "nsServiceManagerUtils.h"
@@ -46,17 +45,14 @@ WebGLContext::GenerateWarning(const char *fmt, va_list ap)
 
     // no need to print to stderr, as JS_ReportWarning takes care of this for us.
 
-    nsCOMPtr<nsIJSContextStack> stack = do_GetService("@mozilla.org/js/xpc/ContextStack;1");
-    JSContext* ccx = nullptr;
-    if (stack && NS_SUCCEEDED(stack->Peek(&ccx)) && ccx) {
-        JS_ReportWarning(ccx, "WebGL: %s", buf);
+    AutoJSContext cx;
+    JS_ReportWarning(cx, "WebGL: %s", buf);
     if (!ShouldGenerateWarnings()) {
-            JS_ReportWarning(ccx,
+        JS_ReportWarning(cx,
             "WebGL: No further warnings will be reported for this WebGL context "
             "(already reported %d warnings)", mAlreadyGeneratedWarnings);
     }
 }
-}
 
 CheckedUint32
 WebGLContext::GetImageSize(WebGLsizei height, 

content/events/src/nsDOMEventTargetHelper.cpp

@@ -8,7 +8,6 @@
 #include "nsEventDispatcher.h"
 #include "nsGUIEvent.h"
 #include "nsIDocument.h"
-#include "nsIJSContextStack.h"
 #include "nsDOMJSUtils.h"
 #include "prprf.h"
 #include "nsGlobalWindow.h"

content/events/src/nsEventListenerManager.cpp

@@ -32,7 +32,6 @@
 #include "nsIServiceManager.h"
 #include "nsIScriptSecurityManager.h"
 #include "nsError.h"
-#include "nsIJSContextStack.h"
 #include "nsIDocument.h"
 #include "nsIPresShell.h"
 #include "nsMutationEvent.h"

content/events/src/nsEventListenerService.cpp

@@ -13,7 +13,6 @@
 #include "nsIDOMWindow.h"
 #include "nsPIDOMWindow.h"
 #include "nsJSUtils.h"
-#include "nsIJSContextStack.h"
 #include "nsGUIEvent.h"
 #include "nsEventDispatcher.h"
 #include "nsIJSEventListener.h"

content/html/content/src/HTMLImageElement.cpp

@@ -35,7 +35,6 @@
 
 #include "nsRuleData.h"
 
-#include "nsIJSContextStack.h"
 #include "nsIDOMHTMLMapElement.h"
 #include "nsEventDispatcher.h"
 

content/html/document/src/nsHTMLDocument.cpp

@@ -69,7 +69,6 @@
 #include "nsIDocumentInlines.h"
 #include "nsIDocumentEncoder.h" //for outputting selection
 #include "nsICachingChannel.h"
-#include "nsIJSContextStack.h"
 #include "nsIContentViewer.h"
 #include "nsIWyciwygChannel.h"
 #include "nsIScriptElement.h"
@@ -3323,16 +3322,10 @@ nsHTMLDocument::DoClipboardSecurityCheck(bool aPaste)
 {
   nsresult rv = NS_ERROR_FAILURE;
 
-  nsCOMPtr<nsIJSContextStack> stack =
-    do_GetService("@mozilla.org/js/xpc/ContextStack;1");
-
-  if (stack) {
-    JSContext *cx = nullptr;
-    stack->Peek(&cx);
+  JSContext *cx = nsContentUtils::GetCurrentJSContext();
   if (!cx) {
     return NS_OK;
   }
-
   JSAutoRequest ar(cx);
 
   NS_NAMED_LITERAL_CSTRING(classNameStr, "Clipboard");
@@ -3356,7 +3349,6 @@ nsHTMLDocument::DoClipboardSecurityCheck(bool aPaste)
                                      nsHTMLDocument::sCutCopyInternal_id,
                                      nsIXPCSecurityManager::ACCESS_GET_PROPERTY);
   }
-  }
   return rv;
 }
 

content/xml/document/src/XMLDocument.cpp

@@ -42,7 +42,6 @@
 #include "nsCRT.h"
 #include "nsIAuthPrompt.h"
 #include "nsIScriptGlobalObjectOwner.h"
-#include "nsIJSContextStack.h"
 #include "nsContentCreatorFunctions.h"
 #include "nsContentPolicyUtils.h"
 #include "nsIDOMUserDataHandler.h"