[Editing][DOM][CodeHealth] Make Node::hasEditableStyle global functions.

third_party/WebKit/Source/core/editing/SelectionController.cpp

Index: third_party/WebKit/Source/core/editing/SelectionController.cpp
diff --git a/third_party/WebKit/Source/core/editing/SelectionController.cpp b/third_party/WebKit/Source/core/editing/SelectionController.cpp
index 2278ead918f8a85157197f8c055510e3153ff41c..c1e68547039fc4ca718dc6907479a62c9c002b67 100644
--- a/third_party/WebKit/Source/core/editing/SelectionController.cpp
+++ b/third_party/WebKit/Source/core/editing/SelectionController.cpp
@@ -323,7 +323,7 @@ void SelectionController::selectClosestWordFromHitTestResult(const HitTestResult
         // If node doesn't have text except space, tab or line break, do not
         // select that 'empty' area.
         EphemeralRangeInFlatTree range(newSelection.start(), newSelection.end());
-        const String& str = plainText(range, innerNode->hasEditableStyle() ? TextIteratorEmitsObjectReplacementCharacter : TextIteratorDefaultBehavior);
+        const String& str = plainText(range, hasEditableStyle(*innerNode) ? TextIteratorEmitsObjectReplacementCharacter : TextIteratorDefaultBehavior);
         if (str.isEmpty() || str.simplifyWhiteSpace().containsOnlyWhitespace())
             return;
 
@@ -522,7 +522,7 @@ bool SelectionController::handleMouseReleaseEvent(const MouseEventWithHitTestRes
         VisibleSelectionInFlatTree newSelection;
         Node* node = event.innerNode();
         bool caretBrowsing = m_frame->settings() && m_frame->settings()->caretBrowsingEnabled();
-        if (node && node->layoutObject() && (caretBrowsing || node->hasEditableStyle())) {
+        if (node && node->layoutObject() && (caretBrowsing || hasEditableStyle(*node))) {
             const VisiblePositionInFlatTree pos = visiblePositionOfHitTestResult(event.hitTestResult());
             newSelection = VisibleSelectionInFlatTree(pos);
         }