Renamed MediaQueryExp::create

Since MediaQueryExp::create returns a nullptr when the input string is not a valid media feature,
I've renamed it to createIfValid.

BUG=

Review URL: https://codereview.chromium.org/209443002

git-svn-id: svn://svn.chromium.org/blink/trunk@169801 bbb929c8-8fbe-4397-9dbb-9b2b20218538

third_party/WebKit/Source/core/css/MediaQueryExp.cpp

@@ -211,8 +211,7 @@ MediaQueryExp::MediaQueryExp(const String& mediaFeature, PassRefPtrWillBeRawPtr<
 {
 }
 
-// FIXME - create should not return a null.
-PassOwnPtrWillBeRawPtr<MediaQueryExp> MediaQueryExp::create(const String& mediaFeature, CSSParserValueList* valueList)
+PassOwnPtrWillBeRawPtr<MediaQueryExp> MediaQueryExp::createIfValid(const String& mediaFeature, CSSParserValueList* valueList)
 {
     ASSERT(!mediaFeature.isNull());
 

third_party/WebKit/Source/core/css/MediaQueryExp.h

@@ -40,7 +40,7 @@ class CSSParserValueList;
 class MediaQueryExp : public NoBaseWillBeGarbageCollectedFinalized<MediaQueryExp> {
     WTF_MAKE_FAST_ALLOCATED_WILL_BE_REMOVED;
 public:
-    static PassOwnPtrWillBeRawPtr<MediaQueryExp> create(const String& mediaFeature, CSSParserValueList*);
+    static PassOwnPtrWillBeRawPtr<MediaQueryExp> createIfValid(const String& mediaFeature, CSSParserValueList*);
     ~MediaQueryExp();
 
     const String& mediaFeature() const { return m_mediaFeature; }

third_party/WebKit/Source/core/css/parser/BisonCSSParser-in.cpp

@@ -1598,7 +1598,7 @@ CSSParserValue& BisonCSSParser::sinkFloatingValue(CSSParserValue& value)
 
 MediaQueryExp* BisonCSSParser::createFloatingMediaQueryExp(const AtomicString& mediaFeature, CSSParserValueList* values)
 {
-    m_floatingMediaQueryExp = MediaQueryExp::create(mediaFeature, values);
+    m_floatingMediaQueryExp = MediaQueryExp::createIfValid(mediaFeature, values);
     return m_floatingMediaQueryExp.get();
 }
 

third_party/WebKit/Source/core/css/parser/MediaQueryParser.cpp

@@ -207,7 +207,7 @@ PassOwnPtrWillBeRawPtr<MediaQuery> MediaQueryData::takeMediaQuery()
 
 bool MediaQueryData::addExpression()
 {
-    OwnPtrWillBeRawPtr<MediaQueryExp> expression = MediaQueryExp::create(m_mediaFeature, &m_valueList);
+    OwnPtrWillBeRawPtr<MediaQueryExp> expression = MediaQueryExp::createIfValid(m_mediaFeature, &m_valueList);
     bool isValid = !!expression;
     m_expressions->append(expression.release());
     m_valueList.clear();