[wasm] Remove obsolete {PipelineWasmCompilationJob}.

R=clemensh@chromium.org

Change-Id: I1b6a54b73be163386be6915402f7d8f9ba838a25
Reviewed-on: https://chromium-review.googlesource.com/c/1335697
Commit-Queue: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57513}

src/compiler/pipeline.h

@@ -44,8 +44,8 @@ class Pipeline : public AllStatic {
                                                     Handle<JSFunction> function,
                                                     bool has_script);
 
-  // Returns a new compilation job for the WebAssembly compilation info.
-  static OptimizedCompilationJob* NewWasmCompilationJob(
+  // Run the pipeline for the WebAssembly compilation info.
+  static wasm::WasmCode* GenerateCodeForWasmFunction(
       OptimizedCompilationInfo* info, wasm::WasmEngine* wasm_engine,
       MachineGraph* mcgraph, CallDescriptor* call_descriptor,
       SourcePositionTable* source_positions, NodeOriginTable* node_origins,

src/compiler/wasm-compiler.cc

@@ -14,7 +14,6 @@
 #include "src/base/v8-fallthrough.h"
 #include "src/builtins/builtins.h"
 #include "src/code-factory.h"
-#include "src/compiler.h"
 #include "src/compiler/backend/code-generator.h"
 #include "src/compiler/backend/instruction-selector.h"
 #include "src/compiler/common-operator.h"
@@ -5316,11 +5315,10 @@ void TurbofanWasmCompilationUnit::ExecuteCompilation(
     call_descriptor = GetI32WasmCallDescriptor(&zone, call_descriptor);
   }
 
-  std::unique_ptr<OptimizedCompilationJob> job(Pipeline::NewWasmCompilationJob(
-      &info, wasm_unit_->wasm_engine_, mcgraph, call_descriptor,
-      source_positions, node_origins, func_body, wasm_unit_->native_module_,
-      wasm_unit_->func_index_));
-  if (job->ExecuteJob() == CompilationJob::SUCCEEDED) {
+  if (Pipeline::GenerateCodeForWasmFunction(
+          &info, wasm_unit_->wasm_engine_, mcgraph, call_descriptor,
+          source_positions, node_origins, func_body, wasm_unit_->native_module_,
+          wasm_unit_->func_index_)) {
     wasm_unit_->SetResult(info.wasm_code(), counters);
   }
   if (FLAG_trace_wasm_decode_time) {