Apply first-line transform-text style

third_party/WebKit/Source/core/layout/LayoutText.cpp

Index: third_party/WebKit/Source/core/layout/LayoutText.cpp
diff --git a/third_party/WebKit/Source/core/layout/LayoutText.cpp b/third_party/WebKit/Source/core/layout/LayoutText.cpp
index 5bd5b139755c9bdb9217a6ca2657afaba9555318..9755abcd55c2ad9d89d3d7730b9f227160274c05 100644
--- a/third_party/WebKit/Source/core/layout/LayoutText.cpp
+++ b/third_party/WebKit/Source/core/layout/LayoutText.cpp
@@ -1414,6 +1414,29 @@ void applyTextTransform(const ComputedStyle* style, String& text, UChar previous
     }
 }
 
+void LayoutText::applyTextTransformFromTo(int from, int len, const ComputedStyle* style)
+{
+    if (!style)
+        return;
+
+    String textToCapitalize;
+    switch (style->textTransform()) {
+    case TTNONE:
+        break;
+    case CAPITALIZE:
+        textToCapitalize = m_text.substring(from, len);
+        makeCapitalized(&textToCapitalize, previousCharacter());
+        m_text.replace(from, len, textToCapitalize);

[rhogan, 2016/09/12 18:58:25]

A couple of things may have been the source of the crash in 644733. However I
haven't been able to recreate the crash so have just added a couple of defensive
measures here.

+        break;
+    case UPPERCASE:
+        m_text.replace(from, len, m_text.substring(from, len).upper(style->locale()));
+        break;
+    case LOWERCASE:
+        m_text.replace(from, len, m_text.substring(from, len).lower(style->locale()));
+        break;
+    }
+}
+
 void LayoutText::setTextInternal(PassRefPtr<StringImpl> text)
 {
     ASSERT(text);