[wasm][cleanup] Make {owned_code_space_} a vector

It was a std::list for no obvious reason. This CL turns it into a
vector, which is the standard data structure we use if we don't have
any special requirements.

R=mstarzinger@chromium.org

Change-Id: Iefc321db9327e0743772dd804e2325266a9bff64
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1594727Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61235}

src/wasm/wasm-code-manager.cc

@@ -419,6 +419,7 @@ NativeModule::NativeModule(WasmEngine* engine, const WasmFeatures& enabled,
   compilation_state_ =
       CompilationState::New(*shared_this, std::move(async_counters));
   DCHECK_NOT_NULL(module_);
+  owned_code_space_.reserve(can_request_more ? 4 : 1);
   owned_code_space_.emplace_back(std::move(code_space));
 
 #if defined(V8_OS_WIN_X64)

src/wasm/wasm-code-manager.h

@@ -525,7 +525,7 @@ class V8_EXPORT_PRIVATE NativeModule final {
 
   DisjointAllocationPool free_code_space_;
   DisjointAllocationPool allocated_code_space_;
-  std::list<VirtualMemory> owned_code_space_;
+  std::vector<VirtualMemory> owned_code_space_;
 
   // End of fields protected by {allocation_mutex_}.
   //////////////////////////////////////////////////////////////////////////////