Fix windows compile, again.

BUG=
R=dslomov@chromium.org

Review URL: https://codereview.chromium.org/380263002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@22331 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/mark-compact.cc

@@ -4068,20 +4068,21 @@ intptr_t MarkCompactCollector::SweepConservatively(PagedSpace* space,
 
 
 int MarkCompactCollector::SweepInParallel(PagedSpace* space,
-                                          intptr_t required_freed_bytes) {
+                                          int required_freed_bytes) {
   PageIterator it(space);
   FreeList* free_list = space == heap()->old_pointer_space()
                             ? free_list_old_pointer_space_.get()
                             : free_list_old_data_space_.get();
   FreeList private_free_list(space);
-  intptr_t max_freed = 0;
-  intptr_t max_freed_overall = 0;
+  int max_freed = 0;
+  int max_freed_overall = 0;
   while (it.has_next()) {
     Page* p = it.next();
 
     if (p->TryParallelSweeping()) {
-      max_freed = SweepConservatively<SWEEP_IN_PARALLEL>(
-          space, &private_free_list, p);
+      max_freed = static_cast<int>(SweepConservatively<SWEEP_IN_PARALLEL>(
+          space, &private_free_list, p));
+      ASSERT(max_freed >= 0);
       free_list->Concatenate(&private_free_list);
       if (required_freed_bytes > 0 && max_freed >= required_freed_bytes) {
         return max_freed;

src/mark-compact.h

@@ -663,7 +663,7 @@ class MarkCompactCollector {
   // to a value larger than 0, then sweeping returns after a block of at least
   // required_freed_bytes was freed. If required_freed_bytes was set to zero
   // then the whole given space is swept.
-  int SweepInParallel(PagedSpace* space, intptr_t required_freed_bytes);
+  int SweepInParallel(PagedSpace* space, int required_freed_bytes);
 
   void WaitUntilSweepingCompleted();
 

src/spaces.cc

@@ -2578,15 +2578,15 @@ void PagedSpace::EvictEvacuationCandidatesFromFreeLists() {
 }
 
 
-HeapObject* PagedSpace::EnsureSweepingProgress(int size_in_bytes) {
-  ASSERT(size_in_bytes >= 0);
+HeapObject* PagedSpace::EnsureSweepingProgress(
+    int size_in_bytes) {
   MarkCompactCollector* collector = heap()->mark_compact_collector();
 
   if (collector->IsConcurrentSweepingInProgress(this)) {
     // If sweeping is still in progress try to sweep pages on the main thread.
-    intptr_t free_chunk =
+    int free_chunk =
         collector->SweepInParallel(this, size_in_bytes);
-    if (free_chunk >= static_cast<intptr_t>(size_in_bytes)) {
+    if (free_chunk >= size_in_bytes) {
       HeapObject* object = free_list_.Allocate(size_in_bytes);
       // We should be able to allocate an object here since we just freed that
       // much memory.