Move platform abstraction to base library

src/ia32/macro-assembler-ia32.cc

Index: src/ia32/macro-assembler-ia32.cc
diff --git a/src/ia32/macro-assembler-ia32.cc b/src/ia32/macro-assembler-ia32.cc
index 07bc737c14cb667a8f9254119e8e22915b22ae65..b3cb507640d9ffc52a09189f2652c6ad7e3ab836 100644
--- a/src/ia32/macro-assembler-ia32.cc
+++ b/src/ia32/macro-assembler-ia32.cc
@@ -992,7 +992,7 @@ void MacroAssembler::EnterExitFrameEpilogue(int argc, bool save_doubles) {
   }
 
   // Get the required frame alignment for the OS.
-  const int kFrameAlignment = OS::ActivationFrameAlignment();
+  const int kFrameAlignment = base::OS::ActivationFrameAlignment();
   if (kFrameAlignment > 0) {
     ASSERT(IsPowerOf2(kFrameAlignment));
     and_(esp, -kFrameAlignment);
@@ -2762,7 +2762,7 @@ void MacroAssembler::Check(Condition cc, BailoutReason reason) {
 
 
 void MacroAssembler::CheckStackAlignment() {
-  int frame_alignment = OS::ActivationFrameAlignment();
+  int frame_alignment = base::OS::ActivationFrameAlignment();
   int frame_alignment_mask = frame_alignment - 1;
   if (frame_alignment > kPointerSize) {
     ASSERT(IsPowerOf2(frame_alignment));
@@ -2999,7 +2999,7 @@ void MacroAssembler::EmitSeqStringSetCharCheck(Register string,
 
 
 void MacroAssembler::PrepareCallCFunction(int num_arguments, Register scratch) {
-  int frame_alignment = OS::ActivationFrameAlignment();
+  int frame_alignment = base::OS::ActivationFrameAlignment();
   if (frame_alignment != 0) {
     // Make stack end at alignment and make room for num_arguments words
     // and the original value of esp.
@@ -3031,7 +3031,7 @@ void MacroAssembler::CallCFunction(Register function,
   }
 
   call(function);
-  if (OS::ActivationFrameAlignment() != 0) {
+  if (base::OS::ActivationFrameAlignment() != 0) {
     mov(esp, Operand(esp, num_arguments * kPointerSize));
   } else {
     add(esp, Immediate(num_arguments * kPointerSize));
@@ -3063,7 +3063,7 @@ CodePatcher::CodePatcher(byte* address, int size)
 
 CodePatcher::~CodePatcher() {
   // Indicate that code has changed.
-  CPU::FlushICache(address_, size_);
+  CpuFeatures::FlushICache(address_, size_);
 
   // Check that the code was patched as expected.
   ASSERT(masm_.pc_ == address_ + size_);