Merge WebKit at r65615 : Initial merge by git.

Change-Id: Ifbf384f4531e3b58475a662e38195c2d9152ae79

1 files changed, 29 insertions, 3 deletions

diff --git a/WebCore/platform/text/SegmentedString.h b/WebCore/platform/text/SegmentedString.h
index 1d3098d..91c2cbe 100644
--- a/WebCore/platform/text/SegmentedString.h
+++ b/WebCore/platform/text/SegmentedString.h
@@ -45,6 +45,8 @@ public:
 
     void setExcludeLineNumbers() { m_doNotExcludeLineNumbers = false; }
 
+    int numberOfCharactersConsumed() const { return m_string.length() - m_length; }
+
     void appendTo(String& str) const
     {
         if (m_string.characters() == m_current) {
@@ -69,10 +71,26 @@ private:
 class SegmentedString {
 public:
     SegmentedString()
-        : m_pushedChar1(0), m_pushedChar2(0), m_currentChar(0), m_composite(false), m_closed(false) {}
+        : m_pushedChar1(0)
+        , m_pushedChar2(0)
+        , m_currentChar(0)
+        , m_numberOfCharactersConsumedPriorToCurrentString(0)
+        , m_composite(false)
+        , m_closed(false)
+    {
+    }
+
     SegmentedString(const String& str)
-        : m_pushedChar1(0), m_pushedChar2(0), m_currentString(str)
-        , m_currentChar(m_currentString.m_current), m_composite(false), m_closed(false) {}
+        : m_pushedChar1(0)
+        , m_pushedChar2(0)
+        , m_currentString(str)
+        , m_currentChar(m_currentString.m_current)
+        , m_numberOfCharactersConsumedPriorToCurrentString(0)
+        , m_composite(false)
+        , m_closed(false)
+    {
+    }
+
     SegmentedString(const SegmentedString&);
 
     const SegmentedString& operator=(const SegmentedString&);
@@ -173,6 +191,13 @@ public:
 
     bool escaped() const { return m_pushedChar1; }
 
+    int numberOfCharactersConsumed()
+    {
+        // We don't currently handle the case when there are pushed character.
+        ASSERT(!m_pushedChar1);
+        return m_numberOfCharactersConsumedPriorToCurrentString + m_currentString.numberOfCharactersConsumed();
+    }
+
     String toString() const;
 
     const UChar& operator*() const { return *current(); }
@@ -221,6 +246,7 @@ private:
     UChar m_pushedChar2;
     SegmentedSubstring m_currentString;
     const UChar* m_currentChar;
+    int m_numberOfCharactersConsumedPriorToCurrentString;
     Deque<SegmentedSubstring> m_substrings;
     bool m_composite;
     bool m_closed;