Oilpan: Fix more uninitialized RawPtrs for the oilpan build.

Source/core/inspector/InspectorStyleSheet.cpp

 /*
  * Copyright (C) 2010, Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
  *     notice, this list of conditions and the following disclaimer in the
@@ skipping 841 matching lines @@
 }
 
 void InspectorStyleSheetBase::fireStyleSheetChanged()
 {
     if (listener())
         listener()->styleSheetChanged(this);
 }
 
 PassRefPtr<TypeBuilder::CSS::CSSStyle> InspectorStyleSheetBase::buildObjectForStyle(CSSStyleDeclaration* style)
 {
-    RefPtrWillBeRawPtr<CSSRuleSourceData> sourceData;
+    RefPtrWillBeRawPtr<CSSRuleSourceData> sourceData = nullptr;
     if (ensureParsedDataReady())
         sourceData = ruleSourceDataFor(style);
 
     InspectorCSSId id = styleId(style);
     if (id.isEmpty()) {
         // Any rule coming from User Agent and not from DefaultStyleSheet will not have id.
         // See InspectorCSSAgent::buildObjectForRule for details.
         RefPtr<InspectorStyle> inspectorStyle = InspectorStyle::create(id, style, this);
         return inspectorStyle->buildObjectForStyle();
     }
@@ skipping 257 matching lines @@
         RefPtr<TypeBuilder::CSS::Selector> simpleSelector = TypeBuilder::CSS::Selector::create()
             .setValue(selector.stripWhiteSpace());
         simpleSelector->setRange(buildSourceRangeObject(range, lineEndings().get()));
         result->addItem(simpleSelector.release());
     }
     return result.release();
 }
 
 PassRefPtr<TypeBuilder::CSS::SelectorList> InspectorStyleSheet::buildObjectForSelectorList(CSSStyleRule* rule)
 {
-    RefPtrWillBeRawPtr<CSSRuleSourceData> sourceData;
+    RefPtrWillBeRawPtr<CSSRuleSourceData> sourceData = nullptr;
     if (ensureParsedDataReady())
         sourceData = ruleSourceDataFor(rule->style());
     RefPtr<TypeBuilder::Array<TypeBuilder::CSS::Selector> > selectors;
 
     // This intentionally does not rely on the source data to avoid catching the trailing comments (before the declaration starting '{').
     String selectorText = rule->selectorText();
 
     if (sourceData)
         selectors = selectorsFromSource(sourceData.get(), m_parsedStyleSheet->text());
     else {
@@ skipping 443 matching lines @@
 
     RefPtrWillBeRawPtr<MutableStylePropertySet> tempDeclaration = MutableStylePropertySet::create();
     RuleSourceDataList ruleSourceDataResult;
     StyleSheetHandler handler(m_styleText, &m_element->document(), m_element->document().elementSheet().contents(), &ruleSourceDataResult);
     BisonCSSParser(parserContextForDocument(&m_element->document())).parseDeclaration(tempDeclaration.get(), m_styleText, &handler, m_element->document().elementSheet().contents());
     return ruleSourceDataResult.first().release();
 }
 
 } // namespace WebCore