Fix document title with LINE SEPARATOR/PARAGRAPH SEPARATOR/LINE TABULATION

third_party/WebKit/Source/core/dom/Document.cpp

Index: third_party/WebKit/Source/core/dom/Document.cpp
diff --git a/third_party/WebKit/Source/core/dom/Document.cpp b/third_party/WebKit/Source/core/dom/Document.cpp
index d1a185e5527a3c99ea73004ace5e1bb2bd12e6ec..256b4146be9d1e0158699d2301e36b3a28673181 100644
--- a/third_party/WebKit/Source/core/dom/Document.cpp
+++ b/third_party/WebKit/Source/core/dom/Document.cpp
@@ -1313,11 +1313,13 @@ static inline String canonicalizedTitle(Document* document,
 
   // Replace control characters with spaces and collapse whitespace.
   bool pendingWhitespace = false;
+  const UChar lineTabulationCharacter = 0x0b;

[tkent, 2016/11/08 03:57:15]

Please use symbols defined in wtf/text/CharacterNames.h.  If it doesn't have
these character names, please add them to it.

+  const UChar spaceCharacter = 0x20;
+  const UChar deleteCharacter = 0x7f;
   for (unsigned i = 0; i < length; ++i) {
     UChar32 c = characters[i];
-    if (c <= 0x20 || c == 0x7F ||
-        (WTF::Unicode::category(c) &
-         (WTF::Unicode::Separator_Line | WTF::Unicode::Separator_Paragraph))) {
+    if ((c <= spaceCharacter && c != lineTabulationCharacter) ||
+        c == deleteCharacter) {
       if (builderIndex != 0)
         pendingWhitespace = true;
     } else {