[v8][wasm] Add blink flag for Turboshaft wasm instruction selection

Bug: chromium:1496282
Change-Id: I412cd642faf69351170d3f92515e09dc636b1b8e
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5076859
Reviewed-by: Leszek Swirski <[email protected]>
Reviewed-by: Michael Lippautz <[email protected]>
Commit-Queue: Manos Koukoutos <[email protected]>
Cr-Commit-Position: refs/heads/main@{#1231941}
diff --git a/gin/gin_features.cc b/gin/gin_features.cc
index 32a86721..8f4b610 100644
--- a/gin/gin_features.cc
+++ b/gin/gin_features.cc
@@ -266,6 +266,10 @@
              "WebAssemblyTurboshaft",
              base::FEATURE_DISABLED_BY_DEFAULT);
 
+BASE_FEATURE(kWebAssemblyTurboshaftInstructionSelection,
+             "WebAssemblyTurboshaftInstructionSelection",
+             base::FEATURE_DISABLED_BY_DEFAULT);
+
 // Feature for more aggressive code caching (https://crbug.com/v8/14411) and
 // three parameters to control caching behavior.
 BASE_FEATURE(kWebAssemblyMoreAggressiveCodeCaching,