Make recipes use the new way of enabling goma.

scripts/slave/recipe_modules/chromium/config.expected/Debug-mac.intel.32-to-ios.arm.32.json

 {
   "android": {
     "build_config_fs": "Debug", 
     "build_dir": "Path('[CHECKOUT]', 'out')", 
     "compile_py": {
       "build_tool": "ninja", 
       "clobber": false, 
-      "compiler": "goma"
+      "compiler": "goma", 
+      "goma_dir": "Path('[BUILD]', 'goma')"
     }, 
     "gyp_env": {
       "GYP_CROSSCOMPILE": "1", 
-      "GYP_DEFINES": "OS=ios component=static_library fastbuild=1 host_os=mac target_arch=arm", 
+      "GYP_DEFINES": "OS=ios component=static_library fastbuild=1 gomadir=Path('[BUILD]', 'goma') host_os=mac target_arch=arm use_goma=1", 
       "GYP_GENERATORS": "ninja"
     }
   }, 
   "android_defaults": "Can only build android on linux.", 
   "blink": {
     "build_config_fs": "Debug", 
     "build_dir": "Path('[CHECKOUT]', 'out')", 
     "compile_py": {
       "build_tool": "ninja", 
       "clobber": false, 
       "compiler": "goma", 
       "default_targets": [
         "blink_tests"
-      ]
+      ], 
+      "goma_dir": "Path('[BUILD]', 'goma')"
     }, 
     "gyp_env": {
       "GYP_CROSSCOMPILE": "1", 
-      "GYP_DEFINES": "component=shared_library target_arch=arm", 
+      "GYP_DEFINES": "component=shared_library gomadir=Path('[BUILD]', 'goma') target_arch=arm use_goma=1", 
       "GYP_GENERATORS": "ninja"
     }
   }, 
   "blink_clang": {
     "build_config_fs": "Debug", 
     "build_dir": "Path('[CHECKOUT]', 'out')", 
     "compile_py": {
       "build_tool": "ninja", 
       "clobber": false, 
       "compiler": "goma-clang", 
       "default_targets": [
         "blink_tests"
-      ]
+      ], 
+      "goma_dir": "Path('[BUILD]', 'goma')"
     }, 
     "gyp_env": {
       "GYP_CROSSCOMPILE": "1", 
-      "GYP_DEFINES": "clang=1 component=shared_library target_arch=arm", 
+      "GYP_DEFINES": "clang=1 component=shared_library gomadir=Path('[BUILD]', 'goma') target_arch=arm use_goma=1", 
       "GYP_GENERATORS": "ninja"
     }
   }, 
   "chromium": {
     "build_config_fs": "Debug", 
     "build_dir": "Path('[CHECKOUT]', 'out')", 
     "compile_py": {
       "build_tool": "ninja", 
       "clobber": false, 
       "compiler": "goma", 
       "default_targets": [
         "All", 
         "chromium_builder_tests"
-      ]
+      ], 
+      "goma_dir": "Path('[BUILD]', 'goma')"
     }, 
     "gyp_env": {
       "GYP_CROSSCOMPILE": "1", 
-      "GYP_DEFINES": "component=shared_library target_arch=arm", 
+      "GYP_DEFINES": "component=shared_library gomadir=Path('[BUILD]', 'goma') target_arch=arm use_goma=1", 
       "GYP_GENERATORS": "ninja"
     }
   }, 
   "chromium_asan": {
     "build_config_fs": "Debug", 
     "build_dir": "Path('[CHECKOUT]', 'out')", 
     "compile_py": {
       "build_tool": "ninja", 
       "clobber": false, 
       "compiler": "goma-clang", 
       "default_targets": [
         "All", 
         "chromium_builder_tests"
-      ]
+      ], 
+      "goma_dir": "Path('[BUILD]', 'goma')"
     }, 
     "gyp_env": {
       "GYP_CROSSCOMPILE": "1", 
-      "GYP_DEFINES": "asan=1 clang=1 component=shared_library lsan=1 target_arch=arm", 
+      "GYP_DEFINES": "asan=1 clang=1 component=shared_library gomadir=Path('[BUILD]', 'goma') lsan=1 target_arch=arm use_goma=1", 
       "GYP_GENERATORS": "ninja"
     }
   }, 
   "chromium_chromeos": {
     "build_config_fs": "Debug", 
     "build_dir": "Path('[CHECKOUT]', 'out')", 
     "compile_py": {
       "build_tool": "ninja", 
       "clobber": false, 
       "compiler": "goma", 
       "default_targets": [
         "All", 
         "chromium_builder_tests"
-      ]
+      ], 
+      "goma_dir": "Path('[BUILD]', 'goma')"
     }, 
     "gyp_env": {
       "GYP_CROSSCOMPILE": "1", 
-      "GYP_DEFINES": "chromeos=1 component=shared_library ffmpeg_branding=ChromeOS proprietary_codecs=1 target_arch=arm", 
+      "GYP_DEFINES": "chromeos=1 component=shared_library ffmpeg_branding=ChromeOS gomadir=Path('[BUILD]', 'goma') proprietary_codecs=1 target_arch=arm use_goma=1", 
       "GYP_GENERATORS": "ninja"
     }
   }, 
   "chromium_chromeos_asan": {
     "build_config_fs": "Debug", 
     "build_dir": "Path('[CHECKOUT]', 'out')", 
     "compile_py": {
       "build_tool": "ninja", 
       "clobber": false, 
       "compiler": "goma-clang", 
       "default_targets": [
         "All", 
         "chromium_builder_tests"
-      ]
+      ], 
+      "goma_dir": "Path('[BUILD]', 'goma')"
     }, 
     "gyp_env": {
       "GYP_CROSSCOMPILE": "1", 
-      "GYP_DEFINES": "asan=1 chromeos=1 clang=1 component=shared_library ffmpeg_branding=ChromeOS lsan=1 proprietary_codecs=1 target_arch=arm", 
+      "GYP_DEFINES": "asan=1 chromeos=1 clang=1 component=shared_library ffmpeg_branding=ChromeOS gomadir=Path('[BUILD]', 'goma') lsan=1 proprietary_codecs=1 target_arch=arm use_goma=1", 
       "GYP_GENERATORS": "ninja"
     }
   }, 
   "chromium_chromeos_clang": {
     "build_config_fs": "Debug", 
     "build_dir": "Path('[CHECKOUT]', 'out')", 
     "compile_py": {
       "build_tool": "ninja", 
       "clobber": false, 
       "compiler": "goma-clang", 
       "default_targets": [
         "All", 
         "chromium_builder_tests"
-      ]
+      ], 
+      "goma_dir": "Path('[BUILD]', 'goma')"
     }, 
     "gyp_env": {
       "GYP_CROSSCOMPILE": "1", 
-      "GYP_DEFINES": "chromeos=1 clang=1 component=shared_library ffmpeg_branding=ChromeOS proprietary_codecs=1 target_arch=arm", 
+      "GYP_DEFINES": "chromeos=1 clang=1 component=shared_library ffmpeg_branding=ChromeOS gomadir=Path('[BUILD]', 'goma') proprietary_codecs=1 target_arch=arm use_goma=1", 
       "GYP_GENERATORS": "ninja"
     }
   }, 
   "chromium_clang": {
     "build_config_fs": "Debug", 
     "build_dir": "Path('[CHECKOUT]', 'out')", 
     "compile_py": {
       "build_tool": "ninja", 
       "clobber": false, 
       "compiler": "goma-clang", 
       "default_targets": [
         "All", 
         "chromium_builder_tests"
-      ]
+      ], 
+      "goma_dir": "Path('[BUILD]', 'goma')"
     }, 
     "gyp_env": {
       "GYP_CROSSCOMPILE": "1", 
-      "GYP_DEFINES": "clang=1 component=shared_library target_arch=arm", 
+      "GYP_DEFINES": "clang=1 component=shared_library gomadir=Path('[BUILD]', 'goma') target_arch=arm use_goma=1", 
       "GYP_GENERATORS": "ninja"
     }
   }, 
   "chromium_official": {
     "build_config_fs": "Debug", 
     "build_dir": "Path('[CHECKOUT]', 'out')", 
     "compile_py": {
       "build_tool": "ninja", 
       "clobber": true, 
       "compiler": "goma", 
       "default_targets": [
         "All", 
         "chromium_builder_tests"
       ], 
+      "goma_dir": "Path('[BUILD]', 'goma')", 
       "mode": "official"
     }, 
     "gyp_env": {
       "GYP_CROSSCOMPILE": "1", 
-      "GYP_DEFINES": "branding=Chrome buildtype=Official component=static_library target_arch=arm", 
+      "GYP_DEFINES": "branding=Chrome buildtype=Official component=static_library gomadir=Path('[BUILD]', 'goma') target_arch=arm use_goma=1", 
       "GYP_GENERATORS": "ninja"
     }
   }, 
   "clang_builder": "config \"clang_builder\" includes \"android_defaults\", but [Can only build android on linux.]", 
   "clang_tests": "config \"clang_tests\" includes \"tests_base\", but [config \"tests_base\" includes \"android_defaults\", but [Can only build android on linux.]]", 
   "component_builder": "config \"component_builder\" includes \"main_builder\", but [config \"main_builder\" includes \"android_defaults\", but [Can only build android on linux.]]", 
   "dartium_builder": "config \"dartium_builder\" includes \"main_builder\", but [config \"main_builder\" includes \"android_defaults\", but [Can only build android on linux.]]", 
   "enormous_tests": "config \"enormous_tests\" includes \"tests_base\", but [config \"tests_base\" includes \"android_defaults\", but [Can only build android on linux.]]", 
   "klp_builder": "config \"klp_builder\" includes \"main_builder\", but [config \"main_builder\" includes \"android_defaults\", but [Can only build android on linux.]]", 
   "main_builder": "config \"main_builder\" includes \"android_defaults\", but [Can only build android on linux.]", 
@@ skipping 26 matching lines @@
     "gyp_env": {
       "GYP_CROSSCOMPILE": "1", 
       "GYP_DEFINES": "target_arch=arm v8_target_arch=arm"
     }
   }, 
   "webrtc_android_apk_try_builder": "Only \"android\" platform is supported (got: \"ios\")", 
   "x86_builder": "config \"x86_builder\" includes \"android_defaults\", but [Can only build android on linux.]", 
   "x86_try_builder": "config \"x86_try_builder\" includes \"x86_builder\", but [config \"x86_builder\" includes \"android_defaults\", but [Can only build android on linux.]]", 
   "x86_try_instrumentation_tests": "config \"x86_try_instrumentation_tests\" includes \"x86_builder\", but [config \"x86_builder\" includes \"android_defaults\", but [Can only build android on linux.]]"
 }