Make //gpu/* pass gn check (and make it gn checked).

gpu/BUILD.gn

Index: gpu/BUILD.gn
diff --git a/gpu/BUILD.gn b/gpu/BUILD.gn
index 939e9e9e9f5655d41116ca0842e34375a0182151..670d4d621901bfb02441753380cfd6e20f9fe636 100644
--- a/gpu/BUILD.gn
+++ b/gpu/BUILD.gn
@@ -111,6 +111,9 @@ test("gl_tests") {
     "//base",
     "//base/test:test_support",
     "//base/third_party/dynamic_annotations",
+    "//gpu/command_buffer/client:gles2_c_lib",
+    "//gpu/command_buffer/client:gles2_implementation",
+    "//gpu/command_buffer/common:gles2_utils",
     "//testing/gmock",
     "//testing/gtest",
     "//third_party/angle:translator",
@@ -118,9 +121,6 @@ test("gl_tests") {
     "//ui/gfx:test_support",
     "//ui/gfx/geometry",
     "//ui/gl",
-    "//gpu/command_buffer/common:gles2_utils",
-    "//gpu/command_buffer/client:gles2_c_lib",
-    "//gpu/command_buffer/client:gles2_implementation",
   ]
 
   libs = []
@@ -162,7 +162,6 @@ test("gpu_unittests") {
     "command_buffer/common/gles2_cmd_format_test_autogen.h",
     "command_buffer/common/gles2_cmd_utils_unittest.cc",
     "command_buffer/common/id_allocator_test.cc",
-    "command_buffer/common/trace_event.h",
     "command_buffer/common/unittest_main.cc",
     "command_buffer/service/async_pixel_transfer_delegate_mock.cc",
     "command_buffer/service/async_pixel_transfer_delegate_mock.h",
@@ -175,8 +174,6 @@ test("gpu_unittests") {
     "command_buffer/service/context_group_unittest.cc",
     "command_buffer/service/feature_info_unittest.cc",
     "command_buffer/service/framebuffer_manager_unittest.cc",
-    "command_buffer/service/gl_context_mock.cc",
-    "command_buffer/service/gl_context_mock.h",
     "command_buffer/service/gl_surface_mock.cc",
     "command_buffer/service/gl_surface_mock.h",
     "command_buffer/service/gles2_cmd_decoder_unittest.cc",
@@ -193,7 +190,6 @@ test("gpu_unittests") {
     "command_buffer/service/gles2_cmd_decoder_unittest_base.cc",
     "command_buffer/service/gles2_cmd_decoder_unittest_base.h",
     "command_buffer/service/gles2_cmd_decoder_unittest_buffers.cc",
-    "command_buffer/service/gles2_cmd_decoder_unittest_context_lost.cc",
     "command_buffer/service/gles2_cmd_decoder_unittest_context_state.cc",
     "command_buffer/service/gles2_cmd_decoder_unittest_drawing.cc",
     "command_buffer/service/gles2_cmd_decoder_unittest_extensions.cc",
@@ -246,6 +242,9 @@ test("gpu_unittests") {
     "//base",
     "//base/test:test_support",
     "//base/third_party/dynamic_annotations",
+    "//gpu/command_buffer/client:gles2_c_lib",
+    "//gpu/command_buffer/client:gles2_implementation",
+    "//gpu/command_buffer/common:gles2_utils",
     "//testing/gmock",
     "//testing/gtest",
     "//third_party/angle:translator",
@@ -253,9 +252,7 @@ test("gpu_unittests") {
     "//ui/gfx:test_support",
     "//ui/gfx/geometry",
     "//ui/gl",
-    "//gpu/command_buffer/common:gles2_utils",
-    "//gpu/command_buffer/client:gles2_c_lib",
-    "//gpu/command_buffer/client:gles2_implementation",
+    "//ui/gl:gl_unittest_utils",
   ]
 }