Sanitizers: Roll in 16 months of libcxx and libcxxabi changes.

third_party/libc++abi/BUILD.gn

Index: third_party/libc++abi/BUILD.gn
diff --git a/third_party/libc++abi/BUILD.gn b/third_party/libc++abi/BUILD.gn
index 7dbbf6216dcc53a5a413988d7e68034d41cc5b52..7b57e9db7dd1395f2a81f9910aa25c57b0e80e59 100644
--- a/third_party/libc++abi/BUILD.gn
+++ b/third_party/libc++abi/BUILD.gn
@@ -19,16 +19,21 @@ static_library("libc++abi") {
     "trunk/src/cxa_exception_storage.cpp",
     "trunk/src/cxa_guard.cpp",
     "trunk/src/cxa_handlers.cpp",
-    "trunk/src/cxa_new_delete.cpp",
+
+    # This file is supposed to be used in fno-exception builds of
+    # libc++abi.  We build lib++/libc++abi with exceptions enabled.
+    #"trunk/src/cxa_noexception.cpp",
     "trunk/src/cxa_personality.cpp",
     "trunk/src/cxa_thread_atexit.cpp",
     "trunk/src/cxa_unexpected.cpp",
     "trunk/src/cxa_vector.cpp",
     "trunk/src/cxa_virtual.cpp",
-    "trunk/src/exception.cpp",
+    "trunk/src/fallback_malloc.cpp",
     "trunk/src/private_typeinfo.cpp",
-    "trunk/src/stdexcept.cpp",
-    "trunk/src/typeinfo.cpp",
+    "trunk/src/stdlib_exception.cpp",
+    "trunk/src/stdlib_new_delete.cpp",
+    "trunk/src/stdlib_stdexcept.cpp",
+    "trunk/src/stdlib_typeinfo.cpp",
   ]
   configs -= [
     "//build/config/compiler:chromium_code",