Use a two-part data format version in IndexedDB metadata.

third_party/WebKit/Source/web/AssertMatchingEnums.cpp

Index: third_party/WebKit/Source/web/AssertMatchingEnums.cpp
diff --git a/third_party/WebKit/Source/web/AssertMatchingEnums.cpp b/third_party/WebKit/Source/web/AssertMatchingEnums.cpp
index eb61d1748ee2d6c7a3f37c992ca957068e42bc60..b76816b251b2322bcba6fe1c5470440afff1c8c6 100644
--- a/third_party/WebKit/Source/web/AssertMatchingEnums.cpp
+++ b/third_party/WebKit/Source/web/AssertMatchingEnums.cpp
@@ -869,12 +869,4 @@ STATIC_ASSERT_ENUM(
     WebSettings::ProgressBarCompletion::ResourcesBeforeDCLAndSameOriginIFrames,
     ProgressBarCompletion::ResourcesBeforeDCLAndSameOriginIFrames);
 
-// This ensures that the version number published in
-// WebSerializedScriptValueVersion.h matches the serializer's understanding.
-// TODO(jbroman): Fix this to also account for the V8-side version. See
-// https://crbug.com/704293.
-static_assert(kSerializedScriptValueVersion ==
-                  SerializedScriptValue::wireFormatVersion,
-              "Update WebSerializedScriptValueVersion.h.");
-
 }  // namespace blink