Added command buffer unit tests to gyp....

build/common.gypi

 # Copyright (c) 2009 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.
 
 {
   'variables': {
     'antlrdir': 'third_party/antlr3',
     'breakpaddir': 'breakpad/src',
+    'cb_service%': 'none',
     'fcolladadir': 'third_party/fcollada/files',
     'glewdir': 'third_party/glew/files',
     'gtestdir': 'testing/gtest/include',
     'jpegdir': 'third_party/libjpeg',
     'nacldir': 'third_party/native_client/googleclient',
     'nixysadir': 'third_party/nixysa',
     'npapidir': 'third_party/npapi',
     'pdiffdir': 'third_party/pdiff/files',
     'pngdir': 'third_party/libpng',
     'screenshotsdir': 'o3d_assets/tests/screenshots',
@@ skipping 15 matching lines @@
           'xcode_settings': {
             'MACOSX_DEPLOYMENT_TARGET': '10.4',
           },
       }],
     ],
   },
   'conditions' : [
     ['OS == "win"',
       {
         'variables': {
-          'renderer': 'd3d9',
+          'renderer%': 'd3d9',
           'cgdir': 'third_party/cg/files/win',
           'swiftshaderdir': 'o3d-internal/third_party/swiftshader/files',
           'LIBRARY_SUFFIX': '.lib',
         },
         'target_defaults': {
           'defines': [
             '_CRT_SECURE_NO_WARNINGS',
-            'RENDERER_D3D9',
             'OS_WIN',
             'UNICODE',
             'NACL_WINDOWS',
           ],
           # Disable warning: "'this' : used in base member initialization list."
           'msvs_disabled_warnings': [4355],
         },
       },
     ],
     ['OS == "mac"',
       {
         'variables': {
-          'renderer': 'gl',
+          'renderer%': 'gl',
           'cgdir': 'third_party/cg/files/mac',
           'LIBRARY_SUFFIX': '.a',
         },
         'target_defaults': {
           'defines': [
-            'RENDERER_GL',
             'OS_MACOSX',
             'UNICODE',
             'GTEST_NOT_MAC_FRAMEWORK_MODE',
             'NACL_OSX=1',
             'MAC_OS_X_VERSION_MIN_REQUIRED=MAC_OS_X_VERSION_10_4',
             'SK_BUILD_FOR_MAC',
           ],
           'configurations': {
             'Debug': {
               'xcode_settings': {
@@ skipping 10 matching lines @@
             'WARNING_CFLAGS': ['-Wno-deprecated-declarations'],
             'WARNING_CXXFLAGS': ['-Wstrict-aliasing',
                                  '-Wno-deprecated',],
           },
         },
       },
     ],
     ['OS == "linux"',
       {
         'variables': {
-          'renderer': 'gl',
+          'renderer%': 'gl',
           'cgdir': 'third_party/cg/files/linux',
           'LIBRARY_SUFFIX': '.a',
         },
         'target_defaults': {
           'defines': [
             'LINUX',
             'MOZ_X11',
             'NACL_LINUX=1',
             'OS_LINUX',
-            'RENDERER_GL',
             'SK_BUILD_FOR_UNIX',
             'UNICODE',
             'XP_UNIX',
           ],
           'cflags': [
             '-fvisibility=hidden',
             '-Wstrict-aliasing',
           ],
         },
       },
     ],
+    ['renderer == "d3d9"',
+      {
+        'target_defaults': {
+          'defines': [
+            'RENDERER_D3D9',
+          ],
+        },
+      },
+    ],
+    ['renderer == "gl"',
+      {
+        'target_defaults': {
+          'defines': [
+            'RENDERER_GL',
+          ],
+        },
+      },
+    ],
+    ['renderer == "cb"',
+      {
+        'target_defaults': {
+          'defines': [
+            'RENDERER_CB',
+          ],
+        },
+      },
+    ],
+    ['cb_service == "d3d9"',
+      {
+        'target_defaults': {
+          'defines': [
+            'CB_SERVICE_D3D9',
+          ],
+        },
+      },
+    ],
+    ['cb_service == "gl"',
+      {
+        'target_defaults': {
+          'defines': [
+            'CB_SERVICE_GL',
+          ],
+        },
+      },
+    ],
   ],
 }