Experimental CompressibleString UMA

third_party/WebKit/Source/bindings/core/v8/ScriptSourceCode.cpp

Index: third_party/WebKit/Source/bindings/core/v8/ScriptSourceCode.cpp
diff --git a/third_party/WebKit/Source/bindings/core/v8/ScriptSourceCode.cpp b/third_party/WebKit/Source/bindings/core/v8/ScriptSourceCode.cpp
index 9e17ff28c30c1461742161060958e1d9dbeab044..afa20981713cc8098273be3eefaacd297453f550 100644
--- a/third_party/WebKit/Source/bindings/core/v8/ScriptSourceCode.cpp
+++ b/third_party/WebKit/Source/bindings/core/v8/ScriptSourceCode.cpp
@@ -13,6 +13,11 @@ ScriptSourceCode::ScriptSourceCode()
 }
 
 ScriptSourceCode::ScriptSourceCode(const String& source, const KURL& url, const TextPosition& startPosition)
+    : ScriptSourceCode(CompressibleString(source.impl()), url, startPosition)
+{
+}
+
+ScriptSourceCode::ScriptSourceCode(const CompressibleString& source, const KURL& url, const TextPosition& startPosition)
     : m_source(source)
     , m_resource(0)
     , m_url(url)
@@ -82,7 +87,7 @@ void ScriptSourceCode::treatNullSourceAsEmpty()
     // the empty script. Consequently, we need to disambiguate between such null string occurrences.
     // Do that by converting the latter case's null strings into empty ones.
     if (m_source.isNull())
-        m_source = "";
+        m_source = CompressibleString(StringImpl::empty());

[haraken, 2016/01/19 07:43:35]

CompressibleString() ?

[hajimehoshi, 2016/01/19 10:19:20]

Done.

 }
 
 } // namespace blink