[wasm] Re-enable native module cache

This reverts commit https://crrev.com/c/2144966, which was merged to
v8.1 in https://crrev.com/c/2151345.

R=thibaudm@chromium.org

Bug: chromium:1070199
Change-Id: Idb25cfaa52f7f7aa07353cf0372e6758adb58d78
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2151346Reviewed-by: Thibaud Michaud <thibaudm@chromium.org>
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#67166}

src/wasm/wasm-engine.cc

@@ -161,9 +161,6 @@ class WeakScriptHandle {
 std::shared_ptr<NativeModule> NativeModuleCache::MaybeGetNativeModule(
     ModuleOrigin origin, Vector<const uint8_t> wire_bytes) {
   if (origin != kWasmOrigin) return nullptr;
-  // Temporarily disabled to fix stability issue on M-81
-  // (https://crbug.com/1070199).
-  if (!FLAG_future) return nullptr;
   base::MutexGuard lock(&mutex_);
   size_t prefix_hash = PrefixHash(wire_bytes);
   NativeModuleCache::Key key{prefix_hash, wire_bytes};
@@ -195,9 +192,6 @@ std::shared_ptr<NativeModule> NativeModuleCache::MaybeGetNativeModule(
 }
 
 bool NativeModuleCache::GetStreamingCompilationOwnership(size_t prefix_hash) {
-  // Temporarily disabled to fix stability issue on M-81
-  // (https://crbug.com/1070199).
-  if (!FLAG_future) return true;
   base::MutexGuard lock(&mutex_);
   auto it = map_.lower_bound(Key{prefix_hash, {}});
   if (it != map_.end() && it->first.prefix_hash == prefix_hash) {
@@ -212,9 +206,6 @@ bool NativeModuleCache::GetStreamingCompilationOwnership(size_t prefix_hash) {
 }
 
 void NativeModuleCache::StreamingCompilationFailed(size_t prefix_hash) {
-  // Temporarily disabled to fix stability issue on M-81
-  // (https://crbug.com/1070199).
-  if (!FLAG_future) return;
   base::MutexGuard lock(&mutex_);
   Key key{prefix_hash, {}};
   DCHECK_EQ(1, map_.count(key));
@@ -226,9 +217,6 @@ std::shared_ptr<NativeModule> NativeModuleCache::Update(
     std::shared_ptr<NativeModule> native_module, bool error) {
   DCHECK_NOT_NULL(native_module);
   if (native_module->module()->origin != kWasmOrigin) return native_module;
-  // Temporarily disabled to fix stability issue on M-81
-  // (https://crbug.com/1070199).
-  if (!FLAG_future) return native_module;
   Vector<const uint8_t> wire_bytes = native_module->wire_bytes();
   DCHECK(!wire_bytes.empty());
   size_t prefix_hash = PrefixHash(native_module->wire_bytes());

test/cctest/cctest.status

@@ -618,11 +618,4 @@
   'test-cpu-profiler/DeoptUntrackedFunction': [SKIP],
 }],  # variant == turboprop
 
-##############################################################################
-['variant != future', {
-  # Wasm native module cache is temporarily disabled in non-future variant
-  # (https://crbug.com/1070199)
-  'test-compilation-cache/*': [SKIP]
-}],  # variant != future
-
 ]

test/inspector/inspector.status

@@ -86,12 +86,4 @@
   'debugger/wasm-*': [SKIP],
 }],  # 'arch == s390 or arch == s390x'
 
-##############################################################################
-['variant != future', {
-  # Wasm native module cache is temporarily disabled in non-future variant
-  # (https://crbug.com/1070199)
-  'debugger/wasm-scripts': [SKIP],
-}],  # variant != future
-
-
 ]