Remove createsAnonymousWrapper. It's dead code.

R=eseidel@chromium.org

Review URL: https://codereview.chromium.org/696493003

engine/core/rendering/RenderInline.cpp

@@ -449,7 +449,7 @@ void RenderInline::splitFlow(RenderObject* beforeChild, RenderBlock* newBlockBox
     block->deleteLineBoxTree();
 
     bool madeNewBeforeBlock = false;
-    if (block->isAnonymousBlock() && (!block->parent() || !block->parent()->createsAnonymousWrapper())) {
+    if (block->isAnonymousBlock()) {
         // We can reuse this block and make it the preBlock of the next continuation.
         pre = block;
         pre->removePositionedObjects(0);

engine/core/rendering/RenderObject.h

@@ -280,7 +280,6 @@ public:
     virtual void addChild(RenderObject* newChild, RenderObject* beforeChild = 0);
     virtual void addChildIgnoringContinuation(RenderObject* newChild, RenderObject* beforeChild = 0) { return addChild(newChild, beforeChild); }
     virtual void removeChild(RenderObject*);
-    virtual bool createsAnonymousWrapper() const { return false; }
     //////////////////////////////////////////
 
 protected: