Mojo: Add support for the use_mojo gyp define to mojob.sh.

mojo/tools/mojob.sh

 #!/bin/bash
 # Copyright 2013 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 # This a simple script to make building/testing Mojo components easier (on
 # Linux).
 
 # TODO(vtl): Maybe make the test runner smart and not run unchanged test
 # binaries.
@@ skipping 17 matching lines @@
   Build/test options (specified before build/test/perftest):
     --debug - Build/test in Debug mode.
     --release - Build/test in Release mode.
     --debug-and-release - Build/test in both Debug and Release modes (default).
   Compiler options (specified before gyp):
     --clang - Use clang (default).
     --gcc - Use gcc.
   Component options:
     --shared Build components as shared libraries (default).
     --static Build components as static libraries.
+  Mojo in chromium/content (crbug.com/353602):
+    --use-mojo - Enabled (default).
+    --no-use-mojo - Disabled.
 
 Note: It will abort on the first failure (if any).
 EOF
 }
 
 do_build() {
   echo "Building in out/$1 ..."
   ninja -C "out/$1" mojo || exit 1
 }
 
@@ skipping 32 matching lines @@
   test "$BUILD_TEST_TYPE" = Debug -o "$BUILD_TEST_TYPE" = Debug_and_Release
 }
 should_do_Release() {
   test "$BUILD_TEST_TYPE" = Release -o "$BUILD_TEST_TYPE" = Debug_and_Release
 }
 
 # Valid values: clang or gcc.
 COMPILER=clang
 # Valid values: shared or static.
 COMPONENT=shared
+# TODO(vtl): Remove this. crbug.com/353602
+# Valid values: enabled or disabled.
+USE_MOJO=enabled
 make_gyp_defines() {
   local options=()
   # Always include these options.
   options+=("use_aura=1")
   case "$COMPILER" in
     clang)
       options+=("clang=1")
       ;;
     gcc)
       options+=("clang=0")
       ;;
   esac
   case "$COMPONENT" in
     shared)
       options+=("component=shared_library")
       ;;
     static)
       options+=("component=static_library")
       ;;
   esac
+  case "$USE_MOJO" in
+    enabled)
+      options+=("use_mojo=1")
+      ;;
+    disabled)
+      options+=("use_mojo=0")
+      ;;
+  esac
   echo ${options[*]}
 }
 
 # We're in src/mojo/tools. We want to get to src.
 cd "$(realpath "$(dirname "$0")")/../.."
 
 if [ $# -eq 0 ]; then
   do_help
   exit 0
 fi
@@ skipping 47 matching lines @@
       ;;
     --gcc)
       COMPILER=gcc
       ;;
     --shared)
       COMPONENT=shared
       ;;
     --static)
       COMPONENT=static
       ;;
+    --use-mojo)
+      USE_MOJO=enabled
+      ;;
+    --no-use-mojo)
+      USE_MOJO=disabled
+      ;;
     *)
       echo "Unknown command \"${arg}\". Try \"$(basename "$0") help\"."
       exit 1
       ;;
   esac
 done