Enable alignment unittests on iOS arm device builds.

base/memory/aligned_memory_unittest.cc

Index: base/memory/aligned_memory_unittest.cc
diff --git a/base/memory/aligned_memory_unittest.cc b/base/memory/aligned_memory_unittest.cc
index abe0cf3ff5739ccc7443d4e15f45fa89461d6a4d..892c50ef70b03915e6841734538c787115ecf883 100644
--- a/base/memory/aligned_memory_unittest.cc
+++ b/base/memory/aligned_memory_unittest.cc
@@ -44,10 +44,6 @@ TEST(AlignedMemoryTest, StackAlignment) {
 
   EXPECT_ALIGNED(raw8.void_data(), 8);
   EXPECT_ALIGNED(raw16.void_data(), 16);
-
-  // TODO(ios): __attribute__((aligned(X))) with X >= 128 does not works on
-  // the stack when building for arm64 on iOS, http://crbug.com/349003
-#if !(defined(OS_IOS) && defined(ARCH_CPU_ARM64))
   EXPECT_ALIGNED(raw128.void_data(), 128);
 
   // NaCl x86-64 compiler emits non-validating instructions for >128
@@ -61,14 +57,10 @@ TEST(AlignedMemoryTest, StackAlignment) {
   EXPECT_EQ(256u, ALIGNOF(raw256));
   EXPECT_ALIGNED(raw256.void_data(), 256);
 
-  // TODO(ios): This test hits an armv7 bug in clang. crbug.com/138066
-#if !(defined(OS_IOS) && defined(ARCH_CPU_ARM_FAMILY))
   AlignedMemory<8, 4096> raw4096;
   EXPECT_EQ(4096u, ALIGNOF(raw4096));
   EXPECT_ALIGNED(raw4096.void_data(), 4096);
-#endif  // !(defined(OS_IOS) && defined(ARCH_CPU_ARM_FAMILY))
 #endif  // !(defined(OS_NACL) && defined(ARCH_CPU_X86_64))
-#endif  // !(defined(OS_IOS) && defined(ARCH_CPU_ARM64))
 }
 
 TEST(AlignedMemoryTest, DynamicAllocation) {