From 59ae3ba236e4dfa8a178668f42616e23491d6d67 Mon Sep 17 00:00:00 2001
From: Chinmay Garde <chinmaygarde@gmail.com>
Date: Fri, 29 Mar 2019 20:53:40 -0700
Subject: [PATCH] Remove unused DartVM::IsKernelMapping (flutter/engine#8381)

---
 engine/src/flutter/runtime/dart_vm.cc | 20 --------------------
 engine/src/flutter/runtime/dart_vm.h  |  2 --
 2 files changed, 22 deletions(-)

diff --git a/engine/src/flutter/runtime/dart_vm.cc b/engine/src/flutter/runtime/dart_vm.cc
index b907db41bd..4c6054f7be 100644
--- a/engine/src/flutter/runtime/dart_vm.cc
+++ b/engine/src/flutter/runtime/dart_vm.cc
@@ -183,26 +183,6 @@ bool DartVM::IsRunningPrecompiledCode() {
   return Dart_IsPrecompiledRuntime();
 }
 
-bool DartVM::IsKernelMapping(const fml::FileMapping* mapping) {
-  if (mapping == nullptr) {
-    return false;
-  }
-
-  const uint8_t kKernelHeaderMagic[] = {0x90, 0xAB, 0xCD, 0xEF};
-  const size_t kKernelHeaderMagicSize = sizeof(kKernelHeaderMagic);
-
-  if (mapping->GetSize() < kKernelHeaderMagicSize) {
-    return false;
-  }
-
-  if (memcmp(kKernelHeaderMagic, mapping->GetMapping(),
-             kKernelHeaderMagicSize) != 0) {
-    return false;
-  }
-
-  return true;
-}
-
 static std::vector<const char*> ProfilingFlags(bool enable_profiling) {
 // Disable Dart's built in profiler when building a debug build. This
 // works around a race condition that would sometimes stop a crash's
diff --git a/engine/src/flutter/runtime/dart_vm.h b/engine/src/flutter/runtime/dart_vm.h
index 9a1bde888d..2c3ac0e303 100644
--- a/engine/src/flutter/runtime/dart_vm.h
+++ b/engine/src/flutter/runtime/dart_vm.h
@@ -38,8 +38,6 @@ class DartVM : public fml::RefCountedThreadSafe<DartVM> {
 
   static bool IsRunningPrecompiledCode();
 
-  static bool IsKernelMapping(const fml::FileMapping* mapping);
-
   const Settings& GetSettings() const;
 
   const DartSnapshot& GetVMSnapshot() const;