replace COMPILE_ASSERT with static_assert in core/html/

Source/core/html/HTMLTrackElement.cpp

Index: Source/core/html/HTMLTrackElement.cpp
diff --git a/Source/core/html/HTMLTrackElement.cpp b/Source/core/html/HTMLTrackElement.cpp
index aaf144e2193f69e0078b387c9c74877782e5258d..e9866a77d5ce3187553b557f0bc5f6dbc09b975c 100644
--- a/Source/core/html/HTMLTrackElement.cpp
+++ b/Source/core/html/HTMLTrackElement.cpp
@@ -236,10 +236,10 @@ void HTMLTrackElement::didCompleteLoad(LoadStatus status)
 }
 
 // NOTE: The values in the TextTrack::ReadinessState enum must stay in sync with those in HTMLTrackElement::ReadyState.
-COMPILE_ASSERT(HTMLTrackElement::NONE == static_cast<HTMLTrackElement::ReadyState>(TextTrack::NotLoaded), TextTrackEnumNotLoaded_Is_Wrong_Should_Be_HTMLTrackElementEnumNONE);
-COMPILE_ASSERT(HTMLTrackElement::LOADING == static_cast<HTMLTrackElement::ReadyState>(TextTrack::Loading), TextTrackEnumLoadingIsWrong_ShouldBe_HTMLTrackElementEnumLOADING);
-COMPILE_ASSERT(HTMLTrackElement::LOADED == static_cast<HTMLTrackElement::ReadyState>(TextTrack::Loaded), TextTrackEnumLoaded_Is_Wrong_Should_Be_HTMLTrackElementEnumLOADED);
-COMPILE_ASSERT(HTMLTrackElement::TRACK_ERROR == static_cast<HTMLTrackElement::ReadyState>(TextTrack::FailedToLoad), TextTrackEnumFailedToLoad_Is_Wrong_Should_Be_HTMLTrackElementEnumTRACK_ERROR);
+static_assert(HTMLTrackElement::NONE == static_cast<HTMLTrackElement::ReadyState>(TextTrack::NotLoaded), "HTMLTrackElement::NONE should be in sync with TextTrack::NotLoaded");
+static_assert(HTMLTrackElement::LOADING == static_cast<HTMLTrackElement::ReadyState>(TextTrack::Loading), "HTMLTrackElement::LOADING should be in sync with TextTrack::Loading");
+static_assert(HTMLTrackElement::LOADED == static_cast<HTMLTrackElement::ReadyState>(TextTrack::Loaded), "HTMLTrackElement::LOADED should be in sync with TextTrack::Loaded");
+static_assert(HTMLTrackElement::TRACK_ERROR == static_cast<HTMLTrackElement::ReadyState>(TextTrack::FailedToLoad), "HTMLTrackElement::TRACK_ERROR should be in sync with TextTrack::FailedToLoad");
 
 void HTMLTrackElement::setReadyState(ReadyState state)
 {