Download rc from google storage

tools/images/chr-source/prepare-build.sh

@@ -74,15 +74,11 @@ gclient runhooks
 echo -e ${RED} -------- download objdump ${NC}
 tools/clang/scripts/update.py --package=objdump
 
-echo -e ${RED} -------- build rc ${NC}
-cd build/toolchain/win/rc
-git clone -q https://github.com/nico/hack
-cd hack/res
+echo -e ${RED} -------- download rc ${NC}
+python3 third_party/depot_tools/download_from_google_storage.py \
+	--no_resume \
+	--no_auth \
+	--bucket chromium-browser-clang/rc \
+	-s build/toolchain/win/rc/win/rc.exe.sha1
 
-../../../../../../third_party/android_ndk/toolchains/llvm/prebuilt/linux-x86_64/bin/clang++ \
-		-std=c++14 rc.cc -Wall \
-		-Wno-c++11-narrowing -O2 -fno-rtti -fno-exceptions -DNDEBUG \
-        -o rc-linux64 -fuse-ld=lld -target x86_64-unknown-linux-gnu
-cd ../../../../../../
-cp build/toolchain/win/rc/hack/res/rc-linux64 build/toolchain/win/rc/linux64/rc