Remove base/memory/aligned_memory.*

Similar to https://codereview.chromium.org/2932053002/.

Wasn't used after LazyInstance use was removed previously.

Change-Id: I0a00b0286cc74253a094c61142f39fa1be773d0f
Reviewed-on: https://chromium-review.googlesource.com/529965
Reviewed-by: Mark Mentovai <mark@chromium.org>
diff --git a/base/BUILD.gn b/base/BUILD.gn
index 6b6b43d..4b9a5fe 100644
--- a/base/BUILD.gn
+++ b/base/BUILD.gn
@@ -45,8 +45,6 @@
     "mac/scoped_nsobject.h",
     "mac/scoped_typeref.h",
     "macros.h",
-    "memory/aligned_memory.cc",
-    "memory/aligned_memory.h",
     "memory/free_deleter.h",
     "memory/ptr_util.h",
     "memory/scoped_policy.h",
diff --git a/base/base.gyp b/base/base.gyp
index 9f0f535..bef4df7 100644
--- a/base/base.gyp
+++ b/base/base.gyp
@@ -69,8 +69,6 @@
         'mac/scoped_nsobject.h',
         'mac/scoped_typeref.h',
         'macros.h',
-        'memory/aligned_memory.cc',
-        'memory/aligned_memory.h',
         'memory/free_deleter.h',
         'memory/ptr_util.h',
         'memory/scoped_policy.h',
diff --git a/base/memory/aligned_memory.cc b/base/memory/aligned_memory.cc
deleted file mode 100644
index 7caaf82..0000000
--- a/base/memory/aligned_memory.cc
+++ /dev/null
@@ -1,44 +0,0 @@
-// Copyright 2012 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "base/memory/aligned_memory.h"
-
-#include "base/logging.h"
-
-#if defined(OS_ANDROID)
-#include <malloc.h>
-#endif
-
-namespace base {
-
-void* AlignedAlloc(size_t size, size_t alignment) {
-  DCHECK_GT(size, 0U);
-  DCHECK_EQ(alignment & (alignment - 1), 0U);
-  DCHECK_EQ(alignment % sizeof(void*), 0U);
-  void* ptr = NULL;
-#if defined(COMPILER_MSVC)
-  ptr = _aligned_malloc(size, alignment);
-// Android technically supports posix_memalign(), but does not expose it in
-// the current version of the library headers used by Chrome.  Luckily,
-// memalign() on Android returns pointers which can safely be used with
-// free(), so we can use it instead.  Issue filed to document this:
-// http://code.google.com/p/android/issues/detail?id=35391
-#elif defined(OS_ANDROID)
-  ptr = memalign(alignment, size);
-#else
-  if (posix_memalign(&ptr, alignment, size))
-    ptr = NULL;
-#endif
-  // Since aligned allocations may fail for non-memory related reasons, force a
-  // crash if we encounter a failed allocation; maintaining consistent behavior
-  // with a normal allocation failure in Chrome.
-  if (!ptr) {
-    CHECK(false);
-  }
-  // Sanity check alignment just to be safe.
-  DCHECK_EQ(reinterpret_cast<uintptr_t>(ptr) & (alignment - 1), 0U);
-  return ptr;
-}
-
-}  // namespace base
diff --git a/base/memory/aligned_memory.h b/base/memory/aligned_memory.h
deleted file mode 100644
index b74981c..0000000
--- a/base/memory/aligned_memory.h
+++ /dev/null
@@ -1,115 +0,0 @@
-// Copyright 2012 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-// AlignedMemory is a POD type that gives you a portable way to specify static
-// or local stack data of a given alignment and size. For example, if you need
-// static storage for a class, but you want manual control over when the object
-// is constructed and destructed (you don't want static initialization and
-// destruction), use AlignedMemory:
-//
-//   static AlignedMemory<sizeof(MyClass), ALIGNOF(MyClass)> my_class;
-//
-//   // ... at runtime:
-//   new(my_class.void_data()) MyClass();
-//
-//   // ... use it:
-//   MyClass* mc = my_class.data_as<MyClass>();
-//
-//   // ... later, to destruct my_class:
-//   my_class.data_as<MyClass>()->MyClass::~MyClass();
-//
-// Alternatively, a runtime sized aligned allocation can be created:
-//
-//   float* my_array = static_cast<float*>(AlignedAlloc(size, alignment));
-//
-//   // ... later, to release the memory:
-//   AlignedFree(my_array);
-//
-// Or using unique_ptr:
-//
-//   std::unique_ptr<float, AlignedFreeDeleter> my_array(
-//       static_cast<float*>(AlignedAlloc(size, alignment)));
-
-#ifndef BASE_MEMORY_ALIGNED_MEMORY_H_
-#define BASE_MEMORY_ALIGNED_MEMORY_H_
-
-#include <stdint.h>
-#include <sys/types.h>
-
-#include "base/compiler_specific.h"
-
-#if defined(COMPILER_MSVC)
-#include <malloc.h>
-#else
-#include <stdlib.h>
-#endif
-
-namespace base {
-
-// AlignedMemory is specialized for all supported alignments.
-// Make sure we get a compiler error if someone uses an unsupported alignment.
-template <size_t Size, size_t ByteAlignment>
-struct AlignedMemory {};
-
-#define BASE_DECL_ALIGNED_MEMORY(byte_alignment) \
-    template <size_t Size> \
-    class AlignedMemory<Size, byte_alignment> { \
-     public: \
-      ALIGNAS(byte_alignment) uint8_t data_[Size]; \
-      void* void_data() { return static_cast<void*>(data_); } \
-      const void* void_data() const { \
-        return static_cast<const void*>(data_); \
-      } \
-      template<typename Type> \
-      Type* data_as() { return static_cast<Type*>(void_data()); } \
-      template<typename Type> \
-      const Type* data_as() const { \
-        return static_cast<const Type*>(void_data()); \
-      } \
-     private: \
-      void* operator new(size_t); \
-      void operator delete(void*); \
-    }
-
-// Specialization for all alignments is required because MSVC (as of VS 2008)
-// does not understand ALIGNAS(ALIGNOF(Type)) or ALIGNAS(template_param).
-// Greater than 4096 alignment is not supported by some compilers, so 4096 is
-// the maximum specified here.
-BASE_DECL_ALIGNED_MEMORY(1);
-BASE_DECL_ALIGNED_MEMORY(2);
-BASE_DECL_ALIGNED_MEMORY(4);
-BASE_DECL_ALIGNED_MEMORY(8);
-BASE_DECL_ALIGNED_MEMORY(16);
-BASE_DECL_ALIGNED_MEMORY(32);
-BASE_DECL_ALIGNED_MEMORY(64);
-BASE_DECL_ALIGNED_MEMORY(128);
-BASE_DECL_ALIGNED_MEMORY(256);
-BASE_DECL_ALIGNED_MEMORY(512);
-BASE_DECL_ALIGNED_MEMORY(1024);
-BASE_DECL_ALIGNED_MEMORY(2048);
-BASE_DECL_ALIGNED_MEMORY(4096);
-
-#undef BASE_DECL_ALIGNED_MEMORY
-
-void* AlignedAlloc(size_t size, size_t alignment);
-
-inline void AlignedFree(void* ptr) {
-#if defined(COMPILER_MSVC)
-  _aligned_free(ptr);
-#else
-  free(ptr);
-#endif
-}
-
-// Deleter for use with unique_ptr. E.g., use as
-//   std::unique_ptr<Foo, base::AlignedFreeDeleter> foo;
-struct AlignedFreeDeleter {
-  inline void operator()(void* ptr) const {
-    AlignedFree(ptr);
-  }
-};
-
-}  // namespace base
-
-#endif  // BASE_MEMORY_ALIGNED_MEMORY_H_