Bug 1749935 - Inline nsParser::CancelParsingEvents. r=hsivonen

Differential Revision: https://phabricator.services.mozilla.com/D135898

parser/html/nsHtml5Parser.cpp

@@ -476,12 +476,6 @@ nsHtml5Parser::Terminate() {
   return executor->DidBuildModel(true);
 }
 
-NS_IMETHODIMP
-nsHtml5Parser::CancelParsingEvents() {
-  MOZ_ASSERT_UNREACHABLE("Don't call this!");
-  return NS_ERROR_NOT_IMPLEMENTED;
-}
-
 bool nsHtml5Parser::IsInsertionPointDefined() {
   return !mExecutor->IsFlushing() && !mInsertionPointPermanentlyUndefined &&
          (!GetStreamParser() || mScriptNestingLevel != 0);

parser/html/nsHtml5Parser.h

@@ -136,11 +136,6 @@ class nsHtml5Parser final : public nsIParser, public nsSupportsWeakReference {
    */
   NS_IMETHOD Terminate() override;
 
-  /**
-   * Don't call. For interface compat only.
-   */
-  NS_IMETHOD CancelParsingEvents() override;
-
   /**
    * True if the insertion point (per HTML5) is defined.
    */

parser/htmlparser/nsIParser.h

@@ -157,18 +157,6 @@ class nsIParser : public nsParserBase {
 
   NS_IMETHOD Terminate(void) = 0;
 
-  /**
-   *  Call this method to cancel any pending parsing events.
-   *  Parsing events may be pending if all of the document's content
-   *  has been passed to the parser but the parser has been interrupted
-   *  because processing the tokens took too long.
-   *
-   *  @update  kmcclusk 05/18/01
-   *  @return  NS_OK if succeeded else ERROR.
-   */
-
-  NS_IMETHOD CancelParsingEvents() = 0;
-
   /**
    * True if the insertion point (per HTML5) is defined.
    */

parser/htmlparser/nsParser.cpp

@@ -270,17 +270,6 @@ nsParser::SetContentSink(nsIContentSink* aSink) {
 NS_IMETHODIMP_(nsIContentSink*)
 nsParser::GetContentSink() { return mSink; }
 
-NS_IMETHODIMP
-nsParser::CancelParsingEvents() {
-  if (mFlags & NS_PARSER_FLAG_PENDING_CONTINUE_EVENT) {
-    NS_ASSERTION(mContinueEvent, "mContinueEvent is null");
-    // Revoke the pending continue parsing event
-    mContinueEvent = nullptr;
-    mFlags &= ~NS_PARSER_FLAG_PENDING_CONTINUE_EVENT;
-  }
-  return NS_OK;
-}
-
 ////////////////////////////////////////////////////////////////////////
 
 /**
@@ -371,13 +360,16 @@ nsParser::Terminate(void) {
   nsCOMPtr<nsIParser> kungFuDeathGrip(this);
   mInternalState = result = NS_ERROR_HTMLPARSER_STOPPARSING;
 
-  // CancelParsingEvents must be called to avoid leaking the nsParser object
   // @see bug 108049
-  // If NS_PARSER_FLAG_PENDING_CONTINUE_EVENT is set then CancelParsingEvents
-  // will reset it so DidBuildModel will call DidBuildModel on the DTD. Note:
-  // The IsComplete() call inside of DidBuildModel looks at the
-  // pendingContinueEvents flag.
-  CancelParsingEvents();
+  // If NS_PARSER_FLAG_PENDING_CONTINUE_EVENT is set then reset it so
+  // DidBuildModel will call DidBuildModel on the DTD. Note: The IsComplete()
+  // call inside of DidBuildModel looks at the pendingContinueEvents flag.
+  if (mFlags & NS_PARSER_FLAG_PENDING_CONTINUE_EVENT) {
+    NS_ASSERTION(mContinueEvent, "mContinueEvent is null");
+    // Revoke the pending continue parsing event
+    mContinueEvent = nullptr;
+    mFlags &= ~NS_PARSER_FLAG_PENDING_CONTINUE_EVENT;
+  }
 
   if (mDTD) {
     mDTD->Terminate();

parser/htmlparser/nsParser.h

@@ -207,13 +207,6 @@ class nsParser final : public nsIParser,
 
   void SetSinkCharset(NotNull<const Encoding*> aCharset);
 
-  /**
-   *  Removes continue parsing events
-   *  @update  kmcclusk 5/18/98
-   */
-
-  NS_IMETHOD CancelParsingEvents() override;
-
   /**
    * Return true.
    */

parser/prototype/PrototypeDocumentParser.h

@@ -80,8 +80,6 @@ class PrototypeDocumentParser final : public nsIParser,
 
   NS_IMETHOD Terminate() override { return NS_ERROR_NOT_IMPLEMENTED; }
 
-  NS_IMETHOD CancelParsingEvents() override { return NS_ERROR_NOT_IMPLEMENTED; }
-
   virtual bool IsInsertionPointDefined() override { return false; }
 
   void IncrementScriptNestingLevel() final {}