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

runtime/vm/virtual_memory_linux.cc

Index: runtime/vm/virtual_memory_linux.cc
diff --git a/runtime/vm/virtual_memory_linux.cc b/runtime/vm/virtual_memory_linux.cc
index 47587524b9a86c5869ad180ce0cd503a23849810..fa14d59eedd9bb29582c149e1835b8567d7348c3 100644
--- a/runtime/vm/virtual_memory_linux.cc
+++ b/runtime/vm/virtual_memory_linux.cc
@@ -24,12 +24,10 @@ namespace dart {
 
 uword VirtualMemory::page_size_ = 0;
 
-
 void VirtualMemory::InitOnce() {
   page_size_ = getpagesize();
 }
 
-
 VirtualMemory* VirtualMemory::ReserveInternal(intptr_t size) {
   void* address = mmap(NULL, size, PROT_NONE,
                        MAP_PRIVATE | MAP_ANON | MAP_NORESERVE, -1, 0);
@@ -40,7 +38,6 @@ VirtualMemory* VirtualMemory::ReserveInternal(intptr_t size) {
   return new VirtualMemory(region);
 }
 
-
 static void unmap(void* address, intptr_t size) {
   if (size == 0) {
     return;
@@ -51,14 +48,12 @@ 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) {
@@ -66,7 +61,6 @@ bool VirtualMemory::FreeSubSegment(int32_t handle,
   return true;
 }
 
-
 bool VirtualMemory::Commit(uword addr,
                            intptr_t size,
                            bool executable,
@@ -82,7 +76,6 @@ 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());
@@ -111,7 +104,6 @@ bool VirtualMemory::Protect(void* address, intptr_t size, Protection mode) {
                    end_address - page_address, prot) == 0);
 }
 
-
 }  // namespace dart
 
 #endif  // defined(HOST_OS_LINUX)