Add LowMemoryNotification to the API on Android platform....

src/mark-compact.cc

 // Copyright 2006-2008 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 21 matching lines @@
 #include "ic-inl.h"
 #include "mark-compact.h"
 #include "stub-cache.h"
 
 namespace v8 {
 namespace internal {
 
 // -------------------------------------------------------------------------
 // MarkCompactCollector
 
+bool MarkCompactCollector::force_compaction_ = false;
 bool MarkCompactCollector::compacting_collection_ = false;
 
 int MarkCompactCollector::previous_marked_count_ = 0;
 GCTracer* MarkCompactCollector::tracer_ = NULL;
 
 
 #ifdef DEBUG
 MarkCompactCollector::CollectorState MarkCompactCollector::state_ = IDLE;
 
 // Counters used for debugging the marking phase of mark-compact or mark-sweep
@@ skipping 51 matching lines @@
   // variable.
   tracer_ = tracer;
 
   static const int kFragmentationLimit = 50;  // Percent.
 #ifdef DEBUG
   ASSERT(state_ == IDLE);
   state_ = PREPARE_GC;
 #endif
   ASSERT(!FLAG_always_compact || !FLAG_never_compact);
 
-  compacting_collection_ = FLAG_always_compact;
+  compacting_collection_ = FLAG_always_compact || force_compaction_;
 
   // We compact the old generation if it gets too fragmented (ie, we could
   // recover an expected amount of space by reclaiming the waste and free
   // list blocks).  We always compact when the flag --gc-global is true
   // because objects do not get promoted out of new space on non-compacting
   // GCs.
   if (!compacting_collection_) {
     int old_gen_recoverable = 0;
     int old_gen_used = 0;
 
@@ skipping 1709 matching lines @@
 
 void MarkCompactCollector::RebuildRSets() {
 #ifdef DEBUG
   ASSERT(state_ == RELOCATE_OBJECTS);
   state_ = REBUILD_RSETS;
 #endif
   Heap::RebuildRSets();
 }
 
 } }  // namespace v8::internal