Reland r17877 - Introduce a v8::Platform class that bundles embedder callbacks

src/default-platform.cc

Index: src/default-platform.cc
diff --git a/src/hydrogen-mark-unreachable.h b/src/default-platform.cc
similarity index 78%
copy from src/hydrogen-mark-unreachable.h
copy to src/default-platform.cc
index e9459d5208c2963c1784330fccc43222ab620bed..ef3c4ebd450bbc63ae99b4534a22fa5bd67a2f39 100644
--- a/src/hydrogen-mark-unreachable.h
+++ b/src/default-platform.cc
@@ -25,29 +25,32 @@
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
-#ifndef V8_HYDROGEN_MARK_UNREACHABLE_H_
-#define V8_HYDROGEN_MARK_UNREACHABLE_H_
+#include "v8.h"
 
-#include "hydrogen.h"
+#include "default-platform.h"
 
 namespace v8 {
 namespace internal {
 
 
-class HMarkUnreachableBlocksPhase : public HPhase {
- public:
-  explicit HMarkUnreachableBlocksPhase(HGraph* graph)
-      : HPhase("H_Mark unrechable blocks", graph) { }
+DefaultPlatform::DefaultPlatform() {}
 
-  void Run();
 
- private:
-  void MarkUnreachableBlocks();
+DefaultPlatform::~DefaultPlatform() {}
 
-  DISALLOW_COPY_AND_ASSIGN(HMarkUnreachableBlocksPhase);
-};
+void DefaultPlatform::CallOnBackgroundThread(Task *task,
+                                             ExpectedRuntime expected_runtime) {
+  // TODO(jochen): implement.
+  task->Run();
+  delete task;
+}
 
 
-} }  // namespace v8::internal
+void DefaultPlatform::CallOnForegroundThread(v8::Isolate* isolate, Task* task) {
+  // TODO(jochen): implement.
+  task->Run();
+  delete task;
+}
+
 
-#endif  // V8_HYDROGEN_MARK_UNREACHABLE_H_
+} }  // namespace v8::internal