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

runtime/vm/code_observers.cc

Index: runtime/vm/code_observers.cc
diff --git a/runtime/vm/code_observers.cc b/runtime/vm/code_observers.cc
index ec47c8fc41309f879298d04b0aa80776da6051f8..485f94a9b02e4df66ab67dce05857597b7cb7801 100644
--- a/runtime/vm/code_observers.cc
+++ b/runtime/vm/code_observers.cc
@@ -2,7 +2,6 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-
 #include "vm/code_observers.h"
 
 #include "vm/os.h"
@@ -16,7 +15,6 @@ Mutex* CodeObservers::mutex_ = NULL;
 intptr_t CodeObservers::observers_length_ = 0;
 CodeObserver** CodeObservers::observers_ = NULL;
 
-
 void CodeObservers::Register(CodeObserver* observer) {
   observers_length_++;
   observers_ = reinterpret_cast<CodeObserver**>(
@@ -27,7 +25,6 @@ void CodeObservers::Register(CodeObserver* observer) {
   observers_[observers_length_ - 1] = observer;
 }
 
-
 void CodeObservers::NotifyAll(const char* name,
                               uword base,
                               uword prologue_offset,
@@ -41,7 +38,6 @@ void CodeObservers::NotifyAll(const char* name,
   }
 }
 
-
 bool CodeObservers::AreActive() {
   for (intptr_t i = 0; i < observers_length_; i++) {
     if (observers_[i]->IsActive()) return true;
@@ -49,7 +45,6 @@ bool CodeObservers::AreActive() {
   return false;
 }
 
-
 void CodeObservers::DeleteAll() {
   for (intptr_t i = 0; i < observers_length_; i++) {
     delete observers_[i];
@@ -59,7 +54,6 @@ void CodeObservers::DeleteAll() {
   observers_ = NULL;
 }
 
-
 void CodeObservers::InitOnce() {
   ASSERT(mutex_ == NULL);
   mutex_ = new Mutex();
@@ -67,7 +61,6 @@ void CodeObservers::InitOnce() {
   OS::RegisterCodeObservers();
 }
 
-
 #endif  // !PRODUCT
 
 }  // namespace dart