FrameLoader: remove a TODO and add a comment

third_party/WebKit/Source/core/loader/FrameLoader.cpp

Index: third_party/WebKit/Source/core/loader/FrameLoader.cpp
diff --git a/third_party/WebKit/Source/core/loader/FrameLoader.cpp b/third_party/WebKit/Source/core/loader/FrameLoader.cpp
index 1cdd19374e3cb3a47f8e74b60c3385811085cd93..89d17d0fdff2ca14029fae3e3222fa8fd30545d0 100644
--- a/third_party/WebKit/Source/core/loader/FrameLoader.cpp
+++ b/third_party/WebKit/Source/core/loader/FrameLoader.cpp
@@ -122,8 +122,7 @@ bool isReloadLoadType(FrameLoadType type) {
 }
 
 static bool needsHistoryItemRestore(FrameLoadType type) {
-  // TODO(toyoshim): Shall we return true for FrameLoadTypeInitialHistoryLoad
-  // too?
+  // FrameLoadtypeInitialHistoryLoad is intentionally excluded.
   return type == FrameLoadTypeBackForward || isReloadLoadType(type);
 }