Remove unnecessary explicit keywords from a constructor with more than one...

Remove unnecessary explicit keywords from a constructor with more than one parameters in css directory.

BUG=None
TEST=None; No behavior change

Review URL: https://codereview.chromium.org/710293002

git-svn-id: svn://svn.chromium.org/blink/trunk@185114 bbb929c8-8fbe-4397-9dbb-9b2b20218538

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

@@ -32,7 +32,7 @@ public:
     void traceAfterDispatch(Visitor* visitor) { CSSValue::traceAfterDispatch(visitor); }
 
 private:
-    explicit CSSContentDistributionValue(CSSValueID distribution, CSSValueID position, CSSValueID overflow);
+    CSSContentDistributionValue(CSSValueID distribution, CSSValueID position, CSSValueID overflow);
 
     CSSValueID m_distribution;
     CSSValueID m_position;

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

@@ -46,7 +46,7 @@ public:
     enum Match { SelectorMatches, SelectorFailsLocally, SelectorFailsAllSiblings, SelectorFailsCompletely };
     enum VisitedMatchType { VisitedMatchDisabled, VisitedMatchEnabled };
     enum Mode { ResolvingStyle = 0, CollectingStyleRules, CollectingCSSRules, QueryingRules, SharingRules };
-    explicit SelectorChecker(Document&, Mode);
+    SelectorChecker(Document&, Mode);
 
     struct SelectorCheckingContext {
         STACK_ALLOCATED();