Rename InvalidatePaintIfNeeded to drop deprecated IfNeeded suffix.

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

Index: third_party/WebKit/Source/core/paint/ObjectPaintInvalidator.h
diff --git a/third_party/WebKit/Source/core/paint/ObjectPaintInvalidator.h b/third_party/WebKit/Source/core/paint/ObjectPaintInvalidator.h
index 9c48bd433bb025529f290fe66d8fc9e5faf71867..26309c80628f7dedd9d98ca895004d081ca8fc5b 100644
--- a/third_party/WebKit/Source/core/paint/ObjectPaintInvalidator.h
+++ b/third_party/WebKit/Source/core/paint/ObjectPaintInvalidator.h
@@ -95,13 +95,12 @@ class ObjectPaintInvalidatorWithContext : public ObjectPaintInvalidator {
                                     const PaintInvalidatorContext& context)
       : ObjectPaintInvalidator(object), context_(context) {}
 
-  PaintInvalidationReason InvalidatePaintIfNeeded() {
-    return InvalidatePaintIfNeededWithComputedReason(
-        ComputePaintInvalidationReason());
+  PaintInvalidationReason InvalidatePaint() {
+    return InvalidatePaintWithComputedReason(ComputePaintInvalidationReason());
   }
 
   PaintInvalidationReason ComputePaintInvalidationReason();
-  PaintInvalidationReason InvalidatePaintIfNeededWithComputedReason(
+  PaintInvalidationReason InvalidatePaintWithComputedReason(
       PaintInvalidationReason);
 
   // This function generates a full invalidation, which means invalidating both