allocator shim: Swap ALIGN_LINKAGE and SHIM_ALWAYS_EXPORT's positions

This fixes the GCC build. GCC seems to be stricter with the position of the
linkage specification, so just swap the terms to prevent an error that looks
like:

In file included from ../../base/allocator/allocator_shim.cc:333:
../../base/allocator/allocator_shim_override_cpp_symbols.h:39:30: error: expected unqualified-id before string constant
 #define ALIGN_LINKAGE extern "C"
                              ^~~
../../base/allocator/allocator_shim_override_cpp_symbols.h:99:20: note: in expansion of macro ‘ALIGN_LINKAGE’
 SHIM_ALWAYS_EXPORT ALIGN_LINKAGE void* ALIGN_NEW(std::size_t size,
                    ^~~~~~~~~~~~~

Bug: 819294
Change-Id: I0aa16ea88cead42e83796a1c86afad8b447ddc50
Reviewed-on: https://chromium-review.googlesource.com/c/1458256
Auto-Submit: Raphael Kubo da Costa <raphael.kubo.da.costa@intel.com>
Reviewed-by: Thomas Anderson <thomasanderson@chromium.org>
Reviewed-by: Primiano Tucci <primiano@chromium.org>
Commit-Queue: Raphael Kubo da Costa <raphael.kubo.da.costa@intel.com>
Cr-Commit-Position: refs/heads/master@{#630084}

base/allocator/allocator_shim_override_cpp_symbols.h

@@ -96,57 +96,57 @@ SHIM_ALWAYS_EXPORT void operator delete[](void* p, size_t) __THROW {
   ShimCppDelete(p);
 }
 
-SHIM_ALWAYS_EXPORT ALIGN_LINKAGE void* ALIGN_NEW(std::size_t size,
+ALIGN_LINKAGE SHIM_ALWAYS_EXPORT void* ALIGN_NEW(std::size_t size,
                                                  ALIGN_VAL_T alignment) {
   return ShimCppAlignedNew(size, static_cast<size_t>(alignment));
 }
 
-SHIM_ALWAYS_EXPORT ALIGN_LINKAGE void* ALIGN_NEW_NOTHROW(
+ALIGN_LINKAGE SHIM_ALWAYS_EXPORT void* ALIGN_NEW_NOTHROW(
     std::size_t size,
     ALIGN_VAL_T alignment,
     const std::nothrow_t&) __THROW {
   return ShimCppAlignedNew(size, static_cast<size_t>(alignment));
 }
 
-SHIM_ALWAYS_EXPORT ALIGN_LINKAGE void ALIGN_DEL(void* p, ALIGN_VAL_T) __THROW {
+ALIGN_LINKAGE SHIM_ALWAYS_EXPORT void ALIGN_DEL(void* p, ALIGN_VAL_T) __THROW {
   ShimCppDelete(p);
 }
 
-SHIM_ALWAYS_EXPORT ALIGN_LINKAGE void ALIGN_DEL_SIZED(void* p,
+ALIGN_LINKAGE SHIM_ALWAYS_EXPORT void ALIGN_DEL_SIZED(void* p,
                                                       std::size_t size,
                                                       ALIGN_VAL_T) __THROW {
   ShimCppDelete(p);
 }
 
-SHIM_ALWAYS_EXPORT ALIGN_LINKAGE void
+ALIGN_LINKAGE SHIM_ALWAYS_EXPORT void
 ALIGN_DEL_NOTHROW(void* p, ALIGN_VAL_T, const std::nothrow_t&) __THROW {
   ShimCppDelete(p);
 }
 
-SHIM_ALWAYS_EXPORT ALIGN_LINKAGE void* ALIGN_NEW_ARR(std::size_t size,
+ALIGN_LINKAGE SHIM_ALWAYS_EXPORT void* ALIGN_NEW_ARR(std::size_t size,
                                                      ALIGN_VAL_T alignment) {
   return ShimCppAlignedNew(size, static_cast<size_t>(alignment));
 }
 
-SHIM_ALWAYS_EXPORT ALIGN_LINKAGE void* ALIGN_NEW_ARR_NOTHROW(
+ALIGN_LINKAGE SHIM_ALWAYS_EXPORT void* ALIGN_NEW_ARR_NOTHROW(
     std::size_t size,
     ALIGN_VAL_T alignment,
     const std::nothrow_t&) __THROW {
   return ShimCppAlignedNew(size, static_cast<size_t>(alignment));
 }
 
-SHIM_ALWAYS_EXPORT ALIGN_LINKAGE void ALIGN_DEL_ARR(void* p,
+ALIGN_LINKAGE SHIM_ALWAYS_EXPORT void ALIGN_DEL_ARR(void* p,
                                                     ALIGN_VAL_T) __THROW {
   ShimCppDelete(p);
 }
 
-SHIM_ALWAYS_EXPORT ALIGN_LINKAGE void ALIGN_DEL_ARR_SIZED(void* p,
+ALIGN_LINKAGE SHIM_ALWAYS_EXPORT void ALIGN_DEL_ARR_SIZED(void* p,
                                                           std::size_t size,
                                                           ALIGN_VAL_T) __THROW {
   ShimCppDelete(p);
 }
 
-SHIM_ALWAYS_EXPORT ALIGN_LINKAGE void
+ALIGN_LINKAGE SHIM_ALWAYS_EXPORT void
 ALIGN_DEL_ARR_NOTHROW(void* p, ALIGN_VAL_T, const std::nothrow_t&) __THROW {
   ShimCppDelete(p);
 }