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 a640b87d4fa243b94e587c9e5e0d2c52c59d9aa1..bcf56add1091126fd1a44b854f1b2534fc83919b 100644
--- a/third_party/WebKit/Source/web/AssertMatchingEnums.cpp
+++ b/third_party/WebKit/Source/web/AssertMatchingEnums.cpp
@@ -868,12 +868,4 @@ 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