Add CC to the GN build, work on GPU more

gpu/BUILD.gn

 # Copyright 2014 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.
 
 # GYP-to-GN project mappings:
 #
 #  gpu.gyp:command_buffer_client => //gpu/command_buffer/client
 #
 #  gpu.gyp:command_buffer_common => //gpu/command_buffer/common
 #
 #  gpu.gyp:gles2_cmd_helper => //gpu/command_buffer/client:gles2_cmd_helper
 #
 #  gpu.gyp:gles2_c_lib => //gpu/command_buffer/client:gles2_c_lib
 #
 #  gpu.gyp:gles2_implementation =>
-#      //gpu_command_buffer/client:gles2_implementation
+#      //gpu/command_buffer/client:gles2_implementation
+
+#  gpu.gyp:gles2_implementation_client_side_arrays =>
+#      //gpu/command_buffer/client:gles2_implementation_client_side_arrays
+#
+#  gpu.gyp:gpu_config => //gpu/config
+#
+#  gpu.gyp:gpu_ipc => //gpu/ipc
+#
+#  gpu.gyp:disk_cache_proto => //gpu/command_buffer/service:disk_cache_proto
 #
 #  command_buffer/command_buffer.gyp:gles2_utils =>
 #     //gpu/command_buffer/common
 #     (Merged in to here because the separate file exists in GYP only to break
 #     a .gyp file dependency cycle which GN doesn't have.)
+
+component("gpu") {
+  deps = [
+    "//gpu/command_buffer/client",
+    "//gpu/command_buffer/common",
+    "//gpu/command_buffer/service",
+    "//gpu/command_buffer/client:gles2_cmd_helper",
+    "//gpu/config",
+    "//gpu/ipc",
+  ]
+}
+
+source_set("gpu_unittest_utils") {
+  sources = [
+    "command_buffer/service/gles2_cmd_decoder_mock.cc",
+    "command_buffer/service/error_state_mock.cc",
+    "command_buffer/client/gles2_interface_stub.cc",
+    "command_buffer/client/gles2_interface_stub.h",
+  ]
+
+  configs += [ "//third_party/khronos:khronos_headers" ]
+
+  deps = [
+    ":gpu",
+    "//testing/gmock",
+    "//testing/gtest",
+    "//ui/gl:gl_unittest_utils",
+  ]
+}
+
+# TODO(GYP) This doesn't link yet.
+if (false) {
+test("gl_tests") {
+  sources = [
+    "command_buffer/tests/compressed_texture_test.cc",
+    "command_buffer/tests/gl_bind_uniform_location_unittest.cc",
+    "command_buffer/tests/gl_chromium_framebuffer_multisample_unittest.cc",
+    "command_buffer/tests/gl_copy_texture_CHROMIUM_unittest.cc",
+    "command_buffer/tests/gl_depth_texture_unittest.cc",
+    "command_buffer/tests/gl_gpu_memory_buffer_unittest.cc",
+    "command_buffer/tests/gl_lose_context_chromium_unittest.cc",
+    "command_buffer/tests/gl_manager.cc",
+    "command_buffer/tests/gl_manager.h",
+    "command_buffer/tests/gl_pointcoord_unittest.cc",
+    "command_buffer/tests/gl_program_unittest.cc",
+    "command_buffer/tests/gl_query_unittest.cc",
+    "command_buffer/tests/gl_readback_unittest.cc",
+    "command_buffer/tests/gl_shared_resources_unittest.cc",
+    "command_buffer/tests/gl_stream_draw_unittest.cc",
+    "command_buffer/tests/gl_test_utils.cc",
+    "command_buffer/tests/gl_test_utils.h",
+    "command_buffer/tests/gl_tests_main.cc",
+    "command_buffer/tests/gl_texture_mailbox_unittest.cc",
+    "command_buffer/tests/gl_texture_storage_unittest.cc",
+    "command_buffer/tests/gl_unittest.cc",
+    "command_buffer/tests/gl_unittests_android.cc",
+    "command_buffer/tests/gl_virtual_contexts_unittest.cc",
+    "command_buffer/tests/occlusion_query_unittest.cc",
+  ]
+
+  defines = [
+    "GLES2_C_LIB_IMPLEMENTATION",
+    "GL_GLEXT_PROTOTYPES",
+  ]
+
+  deps = [
+    ":gpu",
+    ":gpu_unittest_utils",
+    "//base",
+    "//base/third_party/dynamic_annotations",
+    "//testing/gmock",
+    "//testing/gtest",
+    # TODO(GYP)
+    #"<(angle_path)/src/build_angle.gyp:translator",
+    "//ui/gfx",
+    "//ui/gfx/geometry",
+    "//ui/gl",
+    #"//gpu/command_buffer/client",  # These are all part of //gpu, needed?
+    #"//gpu/command_buffer/common",
+    #"//gpu/command_buffer/service",
+    #"//gpu/command_buffer/client:gles2_cmd_helper",
+    "//gpu/command_buffer/client:gles2_c_lib",
+    "//gpu/command_buffer/client:gles2_implementation_client_side_arrays",
+  ]
+
+  # TODO(GYP)
+  #     ['OS == "android"', {
+  #       'dependencies': [
+  #         '../testing/android/native_test.gyp:native_test_native_code',
+  #       ],
+  #     }],
+  #     ['OS == "win"', {
+  #       'dependencies': [
+  #         '../third_party/angle/src/build_angle.gyp:libEGL',
+  #         '../third_party/angle/src/build_angle.gyp:libGLESv2',
+  #       ],
+  #     }],
+}
+}  # if (false)
+
+# TODO(GYP)
+#  gl_tests_apk
+#  gpu_unittests_apk