Rename InvalidatePaintIfNeeded to drop deprecated IfNeeded suffix.

third_party/WebKit/Source/core/paint/HTMLCanvasPaintInvalidator.h

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef HTMLCanvasPaintInvalidator_h
 #define HTMLCanvasPaintInvalidator_h
 
 #include "platform/graphics/PaintInvalidationReason.h"
 #include "platform/wtf/Allocator.h"
 
 namespace blink {
 
 class LayoutHTMLCanvas;
 struct PaintInvalidatorContext;
 
 class HTMLCanvasPaintInvalidator {
   STACK_ALLOCATED();
 
  public:
   HTMLCanvasPaintInvalidator(const LayoutHTMLCanvas& html_canvas,
                              const PaintInvalidatorContext& context)
       : html_canvas_(html_canvas), context_(context) {}
 
-  PaintInvalidationReason InvalidatePaintIfNeeded();
+  PaintInvalidationReason InvalidatePaint();
 
  private:
   const LayoutHTMLCanvas& html_canvas_;
   const PaintInvalidatorContext& context_;
 };
 
 }  // namespace blink
 
 #endif