Rename traits and mojo directory in //ui/base/mojo

This change renames mojo to mojom and *_struct_traits.*
to *_mojom_traits.* in //ui/base/mojo.

*_struct_traits.* => *_mojom_traits.*
//ui/base/mojo => //ui/base/mojom

Bug: 806965
Change-Id: I2e112b4dc66b19c5584f594d7a26de7cff083192
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1681564
Reviewed-by: Daniel Cheng <[email protected]>
Reviewed-by: Scott Violet <[email protected]>
Commit-Queue: Julie Jeongeun Kim <[email protected]>
Cr-Commit-Position: refs/heads/master@{#673537}
diff --git a/components/feed/DEPS b/components/feed/DEPS
index d17eb70..f29865a 100644
--- a/components/feed/DEPS
+++ b/components/feed/DEPS
@@ -17,7 +17,7 @@
   "+services/network/public/mojom",
   "+services/network/test",
   "+third_party/zlib/google",
-  "+ui/base/mojo",
+  "+ui/base/mojom",
   "+ui/gfx/geometry",
   "+ui/gfx/image",
  ]