Keep two empty lines between declarations for cpp files

src/objects.cc

Index: src/objects.cc
===================================================================
--- src/objects.cc	(revision 15486)
+++ src/objects.cc	(working copy)
@@ -9961,22 +9961,26 @@
   CHECK_EQ(target, old_target);  // VisitPointer doesn't change Code* *target.
 }
 
+
 void ObjectVisitor::VisitEmbeddedPointer(RelocInfo* rinfo) {
   ASSERT(rinfo->rmode() == RelocInfo::EMBEDDED_OBJECT);
   VisitPointer(rinfo->target_object_address());
 }
 
+
 void ObjectVisitor::VisitExternalReference(RelocInfo* rinfo) {
   Address* p = rinfo->target_reference_address();
   VisitExternalReferences(p, p + 1);
 }
 
+
 byte Code::compare_nil_state() {
   ASSERT(is_compare_nil_ic_stub());
   return CompareNilICStub::ExtractTypesFromExtraICState(
       extended_extra_ic_state());
 }
 
+
 byte Code::compare_nil_value() {
   ASSERT(is_compare_nil_ic_stub());
   return CompareNilICStub::ExtractNilValueFromExtraICState(
@@ -13299,6 +13303,7 @@
   Smi* flags_;
 };
 
+
 // Utf8StringKey carries a vector of chars as key.
 class Utf8StringKey : public HashTableKey {
  public:
@@ -13665,6 +13670,7 @@
   return entry;
 }
 
+
 // Force instantiation of template instances class.
 // Please note this list is compiler dependent.
 
@@ -14027,6 +14033,7 @@
   return result_double;
 }
 
+
 ExternalArrayType JSTypedArray::type() {
   switch (elements()->map()->instance_type()) {
     case EXTERNAL_BYTE_ARRAY_TYPE:
@@ -14406,6 +14413,7 @@
   return LookupKey(&key, s);
 }
 
+
 MaybeObject* StringTable::LookupKey(HashTableKey* key, Object** s) {
   int entry = FindEntry(key);