Make GN run when doing 32-bit cross-compiles on Linux.

Previously, the breakpad client target wasn't getting compiled.

R=jamesr@chromium.org

Review URL: https://codereview.chromium.org/462813005

Cr-Commit-Position: refs/heads/master@{#289063}
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@289063 0039d316-1c4b-4281-b951-d872f2087c98

breakpad/BUILD.gn

@@ -324,7 +324,9 @@ if (is_linux || is_android) {
   }
 }
 
-if (is_linux && current_toolchain == host_toolchain) {
+if (is_linux) {
+  if (current_toolchain == host_toolchain) {
+    # dump_syms is a host tool, so only compile it for the host system.
     executable("dump_syms") {
       sources = [
         "src/common/dwarf/bytereader.cc",
@@ -380,6 +382,7 @@ if (is_linux && current_toolchain == host_toolchain) {
 
       include_dirs = [ "src" ]
     }
+  }
 
   static_library("client") {
     sources = [