VM: Re-format to use at most one newline between functions

runtime/vm/virtual_memory_macos.cc

Index: runtime/vm/virtual_memory_macos.cc
diff --git a/runtime/vm/virtual_memory_macos.cc b/runtime/vm/virtual_memory_macos.cc
index 25236da65a5dcaa1fc1bbdfab845be9c8ca9f8f8..675afeb3cfb1fa71e03db4ae835f76e05dd0385a 100644
--- a/runtime/vm/virtual_memory_macos.cc
+++ b/runtime/vm/virtual_memory_macos.cc
@@ -24,12 +24,10 @@ namespace dart {
 
 uword VirtualMemory::page_size_ = 0;
 
-
 void VirtualMemory::InitOnce() {
   page_size_ = getpagesize();
 }
 
-
 VirtualMemory* VirtualMemory::ReserveInternal(intptr_t size) {
   ASSERT((size & (PageSize() - 1)) == 0);
   void* address = mmap(NULL, size, PROT_NONE,
@@ -41,7 +39,6 @@ VirtualMemory* VirtualMemory::ReserveInternal(intptr_t size) {
   return new VirtualMemory(region);
 }
 
-
 static void unmap(void* address, intptr_t size) {
   if (size == 0) {
     return;
@@ -52,14 +49,12 @@ static void unmap(void* address, intptr_t size) {
   }
 }
 
-
 VirtualMemory::~VirtualMemory() {
   if (vm_owns_region()) {
     unmap(address(), reserved_size_);
   }
 }
 
-
 bool VirtualMemory::FreeSubSegment(int32_t handle,
                                    void* address,
                                    intptr_t size) {
@@ -67,7 +62,6 @@ bool VirtualMemory::FreeSubSegment(int32_t handle,
   return true;
 }
 
-
 bool VirtualMemory::Commit(uword addr,
                            intptr_t size,
                            bool executable,
@@ -83,7 +77,6 @@ bool VirtualMemory::Commit(uword addr,
   return true;
 }
 
-
 bool VirtualMemory::Protect(void* address, intptr_t size, Protection mode) {
   ASSERT(Thread::Current()->IsMutatorThread() ||
          Isolate::Current()->mutator_thread()->IsAtSafepoint());