Test the containing frame for continuations, not the child. Bug 698706, r=roc

layout/base/nsBidiPresUtils.cpp

@@ -904,8 +904,7 @@ void
 nsBidiPresUtils::TraverseFrames(nsBlockFrame*              aBlockFrame,
                                 nsBlockInFlowLineIterator* aLineIter,
                                 nsIFrame*                  aCurrentFrame,
-                                BidiParagraphData*         aBpd,
-                                BidiParagraphData*         aContainingParagraph)
+                                BidiParagraphData*         aBpd)
 {
   if (!aCurrentFrame)
     return;
@@ -936,10 +935,6 @@ nsBidiPresUtils::TraverseFrames(nsBlockFrame*              aBlockFrame,
       }
     }
 
-    if (aContainingParagraph && isFirstFrame) {
-      aBpd->Reset(aCurrentFrame, aContainingParagraph);
-    }
-
     PRUnichar ch = 0;
     if (frame->IsFrameOfType(nsIFrame::eBidiInlineContainer)) {
       const nsStyleVisibility* vis = frame->GetStyleVisibility();
@@ -1111,8 +1106,18 @@ nsBidiPresUtils::TraverseFrames(nsBlockFrame*              aBlockFrame,
         if (text->mUnicodeBidi & NS_STYLE_UNICODE_BIDI_ISOLATE) {
           // css "unicode-bidi: isolate" and html5 bdi: 
           //  resolve the element as a separate paragraph
-          TraverseFrames(aBlockFrame, aLineIter, kid,
-                         aBpd->GetSubParagraph(), aBpd);
+          BidiParagraphData* subParagraph = aBpd->GetSubParagraph();
+          if (!frame->GetPrevContinuation()) {
+            subParagraph->Reset(kid, aBpd);
+          }
+          TraverseFrames(aBlockFrame, aLineIter, kid, subParagraph);
+          if (!frame->GetNextContinuation()) {
+            ResolveParagraph(aBlockFrame, subParagraph);
+          }
+
+          // Treat the element as a neutral character within its containing
+          //  paragraph.
+          aBpd->AppendControlChar(kObjectSubstitute);
         } else {
           TraverseFrames(aBlockFrame, aLineIter, kid, aBpd);
         }
@@ -1126,13 +1131,6 @@ nsBidiPresUtils::TraverseFrames(nsBlockFrame*              aBlockFrame,
         // last frame of an element specifying embedding or override
         aBpd->PopBidiControl();
       }
-      if (aContainingParagraph) {
-        ResolveParagraph(aBlockFrame, aBpd);
-
-        // Treat an element with unicode-bidi: isolate as a neutral character
-        // within its containing paragraph
-        aContainingParagraph->AppendControlChar(kObjectSubstitute);
-      }
     }
     childFrame = nextSibling;
   } while (childFrame);

layout/base/nsBidiPresUtils.h

@@ -371,8 +371,7 @@ private:
   static void TraverseFrames(nsBlockFrame*              aBlockFrame,
                              nsBlockInFlowLineIterator* aLineIter,
                              nsIFrame*                  aCurrentFrame,
-                             BidiParagraphData*         aBpd,
-                             BidiParagraphData*         containingParagraph = nsnull);
+                             BidiParagraphData*         aBpd);
   
   /*
    * Position aFrame and it's descendants to their visual places. Also if aFrame