Disable hooks for Windows ARM64.

Disable IAT hooks on Windows ARM64 for the same reason as Windows X64.
IAT virtual address is 4 bytes in length and insufficient to hook to
arbitrary 64-bit address.

Bug: 893460
Change-Id: I05b607737e07e12a318f261366a59c8ed1a52782
Reviewed-on: https://chromium-review.googlesource.com/c/1337294Reviewed-by: Bruce Dawson <brucedawson@chromium.org>
Reviewed-by: Jay Civelli <jcivelli@chromium.org>
Commit-Queue: Tom Tan <Tom.Tan@microsoft.com>
Cr-Commit-Position: refs/heads/master@{#608472}

chrome/app/chrome_main_delegate.cc

@@ -217,7 +217,7 @@ bool IsSandboxedProcess() {
 }
 
 bool UseHooks() {
-#if defined(ARCH_CPU_X86_64)
+#if defined(ARCH_CPU_64_BITS)
   return false;
 #elif defined(NDEBUG)
   version_info::Channel channel = chrome::GetChannel();