diff --git a/build_platform_packages.sh b/build_platform_packages.sh
index 5ce38d8195..d0b10cfdff 100755
--- a/build_platform_packages.sh
+++ b/build_platform_packages.sh
@@ -13,9 +13,13 @@ assert_not_root_user
 
 # Flags
 DEFINE_boolean stable $FLAGS_FALSE "Build with stable version of browser."
+DEFINE_boolean new_build $FLAGS_FALSE "Use chromiumos-build."
+DEFINE_string architecture i386 "The architecture to build for (--new_build only)." a
 
-# Parse command line
-FLAGS "$@" || exit 1
+# Fix up the command line and parse with shflags.
+FIXED_FLAGS="$@"
+FIXED_FLAGS=${FIXED_FLAGS/new-build/new_build}
+FLAGS $FIXED_FLAGS || exit 1
 eval set -- "${FLAGS_ARGV}"
 
 # Die on error
@@ -47,40 +51,50 @@ then
   export GET_STABLE_CHROME=1
 fi
 
-# Build dh-chromeos really first. Some of third_party needs it.
-echo "Building package dh-chromeos..."
-cd "$PLATFORM_DIR/dh-chromeos"
-./make_pkg.sh
-cd -
-
-# Build third_party packages first, since packages and libs depend on them.
-for i in $THIRD_PARTY_PACKAGES
-do
-  echo "Building package ${i}..."
-  cd "$THIRD_PARTY_DIR/$i"
+if [ $FLAGS_new_build -eq $FLAGS_TRUE ]; then
+  # chromiumos-build works out the build order for itself.
+  PACKAGES='dh-chromeos libchrome libchromeos'
+  for PKG in $PLATFORM_DIRS $THIRD_PARTY_PACKAGES; do
+    PACKAGES="$PACKAGES ${PKG%/*}"
+  done
+  echo chromiumos-build -a "$FLAGS_architecture" --apt-source $PACKAGES
+  chromiumos-build -a "$FLAGS_architecture" --apt-source $PACKAGES
+else
+  # Build dh-chromeos really first. Some of third_party needs it.
+  echo "Building package dh-chromeos..."
+  cd "$PLATFORM_DIR/dh-chromeos"
   ./make_pkg.sh
   cd -
-done
 
-# Build base lib next, since packages depend on it.
-echo "Building base library..."
-cd "$THIRD_PARTY_DIR/chrome"
-./make_pkg.sh
-cd -
+  # Build third_party packages first, since packages and libs depend on them.
+  for i in $THIRD_PARTY_PACKAGES
+  do
+    echo "Building package ${i}..."
+    cd "$THIRD_PARTY_DIR/$i"
+    ./make_pkg.sh
+    cd -
+  done
 
-#Build common lib next.
-echo "Building common library..."
-cd "$SRC_ROOT/common"
-./make_pkg.sh
-cd -
-
-# Build platform packages
-for i in $PLATFORM_DIRS
-do
-  echo "Building package ${i}..."
-  cd "$PLATFORM_DIR/$i"
+  # Build base lib next, since packages depend on it.
+  echo "Building base library..."
+  cd "$THIRD_PARTY_DIR/chrome"
   ./make_pkg.sh
   cd -
-done
+
+  #Build common lib next.
+  echo "Building common library..."
+  cd "$SRC_ROOT/common"
+  ./make_pkg.sh
+  cd -
+
+  # Build platform packages
+  for i in $PLATFORM_DIRS
+  do
+    echo "Building package ${i}..."
+    cd "$PLATFORM_DIR/$i"
+    ./make_pkg.sh
+    cd -
+  done
+fi
 
 echo "All packages built."