Move the remaining NTP realted files to c/b/android/ntp subdir.

chrome/chrome_browser.gypi

Index: chrome/chrome_browser.gypi
diff --git a/chrome/chrome_browser.gypi b/chrome/chrome_browser.gypi
index aeb8f7f4e0fe73aa97885a78c1634d56264a3173..2a57743dfc8b68d623ce1ceda5096cfb34b338a8 100644
--- a/chrome/chrome_browser.gypi
+++ b/chrome/chrome_browser.gypi
@@ -831,16 +831,16 @@
       'browser/android/most_visited_sites.h',
       'browser/android/net/external_estimate_provider_android.cc',
       'browser/android/net/external_estimate_provider_android.h',
-      'browser/android/new_tab_page_prefs.cc',
-      'browser/android/new_tab_page_prefs.h',
-      'browser/android/new_tab_page_url_handler.cc',
-      'browser/android/new_tab_page_url_handler.h',
-      'browser/android/ntp_snippets_bridge.cc',
-      'browser/android/ntp_snippets_bridge.h',
-      'browser/android/ntp_snippets_controller.cc',
-      'browser/android/ntp_snippets_controller.h',
-      'browser/android/ntp_snippets_launcher.cc',
-      'browser/android/ntp_snippets_launcher.h',
+      'browser/android/ntp/new_tab_page_prefs.cc',
+      'browser/android/ntp/new_tab_page_prefs.h',
+      'browser/android/ntp/new_tab_page_url_handler.cc',
+      'browser/android/ntp/new_tab_page_url_handler.h',
+      'browser/android/ntp/ntp_snippets_bridge.cc',
+      'browser/android/ntp/ntp_snippets_bridge.h',
+      'browser/android/ntp/ntp_snippets_controller.cc',
+      'browser/android/ntp/ntp_snippets_controller.h',
+      'browser/android/ntp/ntp_snippets_launcher.cc',
+      'browser/android/ntp/ntp_snippets_launcher.h',
       'browser/android/omnibox/answers_image_bridge.cc',
       'browser/android/omnibox/answers_image_bridge.h',
       'browser/android/omnibox/autocomplete_controller_android.cc',