Move platform abstraction to base library

src/code-stubs-hydrogen.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/v8.h"
 
 #include "src/code-stubs.h"
 #include "src/field-index.h"
 #include "src/hydrogen.h"
 #include "src/lithium.h"
@@ skipping 244 matching lines @@
     stub->InitializeInterfaceDescriptor(descriptor);
   }
 
   // If we are uninitialized we can use a light-weight stub to enter
   // the runtime that is significantly faster than using the standard
   // stub-failure deopt mechanism.
   if (stub->IsUninitialized() && descriptor->has_miss_handler()) {
     ASSERT(!descriptor->stack_parameter_count().is_valid());
     return stub->GenerateLightweightMissCode();
   }
-  ElapsedTimer timer;
+  base::ElapsedTimer timer;
   if (FLAG_profile_hydrogen_code_stub_compilation) {
     timer.Start();
   }
   CodeStubGraphBuilder<Stub> builder(isolate, stub);
   LChunk* chunk = OptimizeGraph(builder.CreateGraph());
   Handle<Code> code = chunk->Codegen();
   if (FLAG_profile_hydrogen_code_stub_compilation) {
     double ms = timer.Elapsed().InMillisecondsF();
     PrintF("[Lazy compilation of %s took %0.3f ms]\n",
            stub->GetName().get(), ms);
@@ skipping 1428 matching lines @@
   return Pop();
 }
 
 
 Handle<Code> KeyedLoadGenericElementStub::GenerateCode() {
   return DoGenerateCode(this);
 }
 
 
 } }  // namespace v8::internal