Update mac toolchain to include llvm-size binary and remove 10.13 SDK.

Change-Id: Ibf65ebd924f61a68905d1c26642f7073fab8bea8
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1721440
Commit-Queue: Erik Chen <erikchen@chromium.org>
Commit-Queue: John Budorick <jbudorick@chromium.org>
Auto-Submit: Erik Chen <erikchen@chromium.org>
Reviewed-by: John Budorick <jbudorick@chromium.org>
Cr-Original-Commit-Position: refs/heads/master@{#681578}
Cr-Mirrored-From: https://chromium.googlesource.com/chromium/src
Cr-Mirrored-Commit: 9a856e8c6fdb2df4ca4b69e79123736487d84a13

mac_toolchain.py

@@ -38,10 +38,10 @@ import sys
 # xcode_binaries, see InstallXcodeBinaries. https://crbug.com/984746
 MAC_TOOLCHAIN_VERSION = '9E501'
 
-# This contains binaries from Xcode 10.12.1, along with the 10.13 and 10.14
-# SDKs. To build this package, see comments in build/xcode_binaries.yaml
+# This contains binaries from Xcode 10.12.1, along with the 10.14 SDKs. To build
+# this package, see comments in build/xcode_binaries.yaml
 MAC_BINARIES_LABEL = 'infra_internal/ios/xcode/xcode_binaries/mac-amd64'
-MAC_BINARIES_TAG = '4SpEve_8bN_DmTH0QdxMQoCTsrAe5QK04uoMEnNHAvQC'
+MAC_BINARIES_TAG = 'hKD0dobc7nP5I5bX5OZ0v9GkUJXb7ADJO7SuK5070G8C'
 
 # The toolchain will not be downloaded if the minimum OS version is not met.
 # 17 is the major version number for macOS 10.13.

xcode_binaries.yaml

@@ -21,6 +21,7 @@ data:
   - file: Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/llvm-nm
   - file: Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/llvm-objdump
   - file: Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/llvm-otool
+  - file: Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/llvm-size
   - file: Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/libtool
   - file: Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/mig
   - file: Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/nm