cc: Put context-loss tests in layer_tree_host_unittest_context.cc

cc/cc_tests.gyp

Index: cc/cc_tests.gyp
diff --git a/cc/cc_tests.gyp b/cc/cc_tests.gyp
index 77647105ae7dbbbcfc17ce0b60fbaa26bc1a9f0c..c9d944d9d299fd2a88d1ff2b65650e2f331b19aa 100644
--- a/cc/cc_tests.gyp
+++ b/cc/cc_tests.gyp
@@ -29,6 +29,7 @@
       'layer_tree_host_impl_unittest.cc',
       'layer_tree_host_unittest.cc',
       'layer_tree_host_unittest_animation.cc',
+      'layer_tree_host_unittest_context.cc',
       'layer_tree_host_unittest_occlusion.cc',
       'layer_tree_host_unittest_scroll.cc',
       'layer_unittest.cc',
@@ -70,6 +71,8 @@
       'test/fake_content_layer.h',
       'test/fake_content_layer_client.cc',
       'test/fake_content_layer_client.h',
+      'test/fake_content_layer_impl.cc',
+      'test/fake_content_layer_impl.h',
       'test/fake_impl_proxy.h',
       'test/fake_output_surface.h',
       'test/fake_layer_tree_host_client.cc',
@@ -91,6 +94,10 @@
       'test/fake_output_surface.h',
       'test/fake_software_output_device.cc',
       'test/fake_software_output_device.h',
+      'test/fake_video_frame.cc',
+      'test/fake_video_frame.h',
+      'test/fake_video_frame_provider.cc',
+      'test/fake_video_frame_provider.h',
       'test/fake_web_graphics_context_3d.cc',
       'test/fake_web_graphics_context_3d.h',
       'test/fake_web_scrollbar.cc',