Add the BUILD files for content_resources.

content/app/resources/content_resources.gyp

Index: content/app/resources/content_resources.gyp
diff --git a/webkit/glue/resources/webkit_resources.gyp b/content/app/resources/content_resources.gyp
similarity index 62%
copy from webkit/glue/resources/webkit_resources.gyp
copy to content/app/resources/content_resources.gyp
index 7d34e0df4fac43f1e5dc289573987f27c958d76d..f47eb9e900a17f9c11dee58a204b0d2163f43031 100644
--- a/webkit/glue/resources/webkit_resources.gyp
+++ b/content/app/resources/content_resources.gyp
@@ -5,17 +5,17 @@
 {
   'targets': [
     {
-      # GN version: //webkit/glue/resources
-      'target_name': 'webkit_resources',
+      # GN version: //content/app/resources
+      'target_name': 'content_resources',
       'type': 'none',
       'variables': {
-        'grit_out_dir': '<(SHARED_INTERMEDIATE_DIR)/webkit',
+        'grit_out_dir': '<(SHARED_INTERMEDIATE_DIR)/content/app/resources/',
       },
       'actions': [
         {
-          'action_name': 'generate_webkit_resources',
+          'action_name': 'generate_content_resources',
           'variables': {
-            'grit_grd_file': 'webkit_resources.grd',
+            'grit_grd_file': 'content_resources.grd',
           },
           'includes': [ '../../../build/grit_action.gypi' ],
         },