Remove PNaCl's RequestFirstInstall, use resource throttle instead

components/nacl/common/pnacl_types.cc

Index: components/nacl/common/pnacl_types.cc
diff --git a/components/nacl/common/pnacl_types.cc b/components/nacl/common/pnacl_types.cc
index 75384b6faed8bf60b3aa38d2d172b6d00a860402..b8e85d9b30e8a9f337f2f914a8b764eaa2e7b067 100644
--- a/components/nacl/common/pnacl_types.cc
+++ b/components/nacl/common/pnacl_types.cc
@@ -10,20 +10,4 @@ PnaclCacheInfo::PnaclCacheInfo()
     : abi_version(0), opt_level(0), has_no_store_header(0) {}
 PnaclCacheInfo::~PnaclCacheInfo() {}
 
-// static
-bool PnaclInstallProgress::progress_known(const PnaclInstallProgress& p) {
-  return p.total_size >= 0;
-}
-
-// static
-PnaclInstallProgress PnaclInstallProgress::Unknown() {
-  PnaclInstallProgress p;
-  p.current = 0;
-  // Use -1 to indicate that total is not determined.
-  // This matches the -1 of the OnURLFetchDownloadProgress interface in
-  // net/url_request/url_fetcher_delegate.h
-  p.total_size = -1;
-  return p;
-}
-
 }  // namespace nacl