Don't use response files in GN build for Mac static libraries

Apparently libtool on Mac doesn't understand the "@" syntax.

BUG=
R=thakis@chromium.org

Review URL: https://codereview.chromium.org/309113002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@274561 0039d316-1c4b-4281-b951-d872f2087c98

build/toolchain/mac/BUILD.gn

@@ -80,10 +80,8 @@ template("mac_clang_toolchain") {
       deps = "gcc"
     }
     tool("alink") {
-      command = "rm -f \$out && ./gyp-mac-tool filter-libtool libtool \$libtool_flags -static -o \$out @\$rspfile \$postbuilds"
+      command = "rm -f \$out && ./gyp-mac-tool filter-libtool libtool \$libtool_flags -static -o \$out \$in \$postbuilds"
       description = "LIBTOOL-STATIC \$out"
-      rspfile = "\$out.rsp"
-      rspfile_content = "\$in"
     }
     tool("solink") {
       command = "if [ ! -e \$lib -o ! -e \${lib}.TOC ] || otool -l \$lib | grep -q LC_REEXPORT_DYLIB ; then $ld -shared \$ldflags -o \$lib @\$rspfile \$solibs \$libs \$postbuilds && { otool -l \$lib | grep LC_ID_DYLIB -A 5; nm -gP \$lib | cut -f1-2 -d' ' | grep -v U\$\$; true; } > \${lib}.TOC; else $ld -shared \$ldflags -o \$lib \$in \$solibs \$libs \$postbuilds && { otool -l \$lib | grep LC_ID_DYLIB -A 5; nm -gP \$lib | cut -f1-2 -d' ' | grep -v U\$\$; true; } > \${lib}.tmp && if ! cmp -s \${lib}.tmp \${lib}.TOC; then mv \${lib}.tmp \${lib}.TOC ; fi; fi"