Init BidiResolver with Neutral directionality in RenderText

Source/core/rendering/RenderText.cpp

Index: Source/core/rendering/RenderText.cpp
diff --git a/Source/core/rendering/RenderText.cpp b/Source/core/rendering/RenderText.cpp
index d60eac1bd18d6904e6c73b16bf977a4694d396ea..5adf2fb388ad1054d679c4a7fbbe13d445742e05 100644
--- a/Source/core/rendering/RenderText.cpp
+++ b/Source/core/rendering/RenderText.cpp
@@ -938,9 +938,10 @@ void RenderText::computePreferredLogicalWidths(float leadWidth, HashSet<const Si
     bool breakAll = (styleToUse->wordBreak() == BreakAllWordBreak || styleToUse->wordBreak() == BreakWordBreak) && styleToUse->autoWrap();
 
     TextRun textRun(text());
-    textRun.setDirection(textDirection);
     BidiResolver<TextRunIterator, BidiCharacterRun> bidiResolver;
-    bidiResolver.setStatus(BidiStatus(textRun.direction(), textRun.directionalOverride()));
+    BidiStatus status;
+    status.context = BidiContext::create(0, WTF::Unicode::OtherNeutral);
+    bidiResolver.setStatus(status);
     bidiResolver.setPositionIgnoringNestedIsolates(TextRunIterator(&textRun, 0));
     bool hardLineBreak = false;
     bool reorderRuns = false;
@@ -951,11 +952,11 @@ void RenderText::computePreferredLogicalWidths(float leadWidth, HashSet<const Si
     for (int i = 0; i < len; i++) {
         UChar c = uncheckedCharacterAt(i);
 
-        while (i > run->stop())
+        while (i > run->stop() || (run->next() && run->next()->direction() == run->direction()))

[leviw_travelin_and_unemployed, 2014/03/03 19:27:46]

Add a comment explaining what this does, and LGTM.

             run = run->next();
 
         ASSERT(run);
-        ASSERT(i >= run->start() && i <= run->stop());
+        ASSERT(i <= run->stop());
         TextDirection textDirection = run->direction();
 
         bool previousCharacterIsSpace = isSpace;