Moving LatencyInfo into a separate component.

content/DEPS

 # Do NOT add chrome to the list below. We shouldn't be including files
 # from src/chrome in src/content.
 include_rules = [
   # The subdirectories in content/ will manually allow their own include
   # directories in content/ so we disallow all of them.
   "-content",
   "+content/app/resources/grit/content_resources.h",
   "+content/common",
   "+content/grit",
   "+content/public/common",
@@ skipping 68 matching lines @@
   "+ui/accessibility",
   "+ui/android",
   # Aura is analogous to Win32 or a Gtk, so it is allowed.
   "+ui/aura",
   "+ui/base",
   "+ui/compositor",
   "+ui/display",
   "+ui/events",
   "+ui/gfx",
   "+ui/gl",
+  "+ui/latency",
   "+ui/native_theme",
   "+ui/ozone/public",
   "+ui/resources/grit/ui_resources.h",
   "+ui/resources/grit/webui_resources.h",
   "+ui/resources/grit/webui_resources_map.h",
   "+ui/shell_dialogs",
   "+ui/snapshot",
   "+ui/strings/grit/ui_strings.h",
   "+ui/surface",
   "+ui/touch_selection",
@@ skipping 18 matching lines @@
   "+jni",
 ]
 
 # content -> content/shell dependency is not allowed, except for browser tests.
 specific_include_rules = {
   ".*_browsertest[a-z_]*\.(cc|h)": [
     "+content/shell/browser",
     "+content/shell/common",
   ],
 }