Fail even in release mode when under-invalidation is being checked

third_party/WebKit/Source/platform/graphics/paint/PaintController.cpp

Index: third_party/WebKit/Source/platform/graphics/paint/PaintController.cpp
diff --git a/third_party/WebKit/Source/platform/graphics/paint/PaintController.cpp b/third_party/WebKit/Source/platform/graphics/paint/PaintController.cpp
index ac49b8ada5618d180554bfaf35424a13018f422f..10e86d553b372aba64baf2dbbeb81a81c3decbaa 100644
--- a/third_party/WebKit/Source/platform/graphics/paint/PaintController.cpp
+++ b/third_party/WebKit/Source/platform/graphics/paint/PaintController.cpp
@@ -149,13 +149,13 @@ void PaintController::addCachedSubsequence(const DisplayItemClient& client,
     if (!markers) {
       showSequenceUnderInvalidationError(
           "under-invalidation : unexpected subsequence", client, start, end);
-      DCHECK(false);
+      CHECK(false);
     }
     if (markers->end - markers->start != end - start) {
       showSequenceUnderInvalidationError(
           "under-invalidation: new subsequence wrong length", client, start,
           end);
-      DCHECK(false);
+      CHECK(false);
     }
   }