Tighten up DEPS some more. NaCl/service process code are including internal content files. Fix the …

content/content_common.gypi

Index: content/content_common.gypi
===================================================================
--- content/content_common.gypi	(revision 140304)
+++ content/content_common.gypi	(working copy)
@@ -36,6 +36,7 @@
     'public/common/child_process_sandbox_support_linux.h',
     'public/common/content_constants.cc',
     'public/common/content_constants.h',
+    'public/common/content_descriptors.h',
     'public/common/content_paths.h',
     'public/common/content_restriction.h',
     'public/common/content_switches.cc',
@@ -117,14 +118,11 @@
     'common/child_thread.h',
     'common/child_trace_message_filter.cc',
     'common/child_trace_message_filter.h',
-    'common/chrome_descriptors.h',
     'common/clipboard_messages.cc',
     'common/clipboard_messages.h',
     'common/content_message_generator.cc',
     'common/content_message_generator.h',
     'common/content_export.h',
-    'common/content_counters.cc',
-    'common/content_counters.h',
     'common/content_paths.cc',
     'common/css_colors.h',
     'common/database_messages.h',
@@ -205,9 +203,6 @@
     'common/gpu/texture_image_transport_surface.cc',
     'common/handle_enumerator_win.cc',
     'common/handle_enumerator_win.h',
-    'common/hi_res_timer_manager_posix.cc',
-    'common/hi_res_timer_manager_win.cc',
-    'common/hi_res_timer_manager.h',
     'common/indexed_db/indexed_db_key.cc',
     'common/indexed_db/indexed_db_key.h',
     'common/indexed_db/indexed_db_key_path.cc',
@@ -318,8 +313,6 @@
     'common/swapped_out_messages.cc',
     'common/swapped_out_messages.h',
     'common/text_input_client_messages.h',
-    'common/unix_domain_socket_posix.cc',
-    'common/unix_domain_socket_posix.h',
     'common/url_schemes.cc',
     'common/url_schemes.h',
     'common/utility_messages.h',