Add error strings for NTP

Add error strings for various errors that can occur while using NTP
custom backgrounds and custom links.

Bug: 851217
Change-Id: I4cd68efedfb12fbf89150c8ee72aeaa859f7ec15
Reviewed-on: https://chromium-review.googlesource.com/1102001
Commit-Queue: Kyle Milka <kmilka@chromium.org>
Reviewed-by: Ilya Sherman <isherman@chromium.org>
Cr-Commit-Position: refs/heads/master@{#569519}

chrome/app/generated_resources.grd

@@ -4891,7 +4891,7 @@ Keep your key file in a safe place. You will need it to create new versions of y
         Select a Google Photo Album
       </message>
       <message name="IDS_NTP_CUSTOM_BG_DAILY_REFRESH" desc="The text label for the daily background randomization option.  (On the New Tab Page)">
-        Daily refresh
+        Refresh daily
       </message>
       <message name="IDS_NTP_CUSTOM_BG_SURPRISE_ME" desc="The text label for the random background option. (On the New Tab Page)">
         Surprise me
@@ -4899,6 +4899,27 @@ Keep your key file in a safe place. You will need it to create new versions of y
       <message name="IDS_NTP_CUSTOM_BG_RESTORE_DEFAULT" desc="The text label for the restore default option for background customization. (On the New Tab Page)">
         Restore default background
       </message>
+      <message name="IDS_NTP_CUSTOM_BG_CANCEL" desc="The text label for the cancel option for background customization. (On the New Tab Page)">
+        Cancel
+      </message>
+      <message name="IDS_NTP_CONNECTION_ERROR_NO_PERIOD" desc="Error message for when a connection cannot be established. (On the New Tab Page)">
+        Connection error
+      </message>
+      <message name="IDS_NTP_CONNECTION_ERROR" desc="Error message for when a connection cannot be established. (On the New Tab Page)">
+        Connection error.
+      </message>
+      <message name="IDS_NTP_ERROR_MORE_INFO" desc="Link to more detailed information when a connection cannot be established. (On the New Tab Page)">
+        More info
+      </message>
+      <message name="IDS_NTP_CUSTOM_BG_BACKGROUNDS_UNAVAILABLE" desc="Error message for when background customization is not available. (On the New Tab Page)">
+        Backgrounds are unavailable. Try again later.
+      </message>
+      <message name="IDS_NTP_CUSTOM_BG_IMAGE_UNAVAILABLE" desc="Error message for when the selected background image is not available. (On the New Tab Page)">
+        Image is unavailable. Try again later.
+      </message>
+      <message name="IDS_NTP_CUSTOM_BG_IMAGE_NOT_USABLE" desc="Error message for when an uploaded image is not usuable as a custom background. (On the New Tab Page)">
+        This image can't be used. Choose a different image.
+      </message>
 
       <!--Tooltip strings-->
       <message name="IDS_TOOLTIP_BACK" desc="The tooltip for back button">

chrome/app/generated_resources_grd/IDS_NTP_CONNECTION_ERROR.png.sha1

+9f9debb77d3d9d1a3c4efa7987ca86a11ec1b770
\ No newline at end of file

chrome/app/generated_resources_grd/IDS_NTP_CONNECTION_ERROR_NO_PERIOD.png.sha1

+9f9debb77d3d9d1a3c4efa7987ca86a11ec1b770
\ No newline at end of file

chrome/app/generated_resources_grd/IDS_NTP_CUSTOM_BG_BACKGROUNDS_UNAVAILABLE.png.sha1

+3ec1335904c0ca540498d20802f84019996a7632
\ No newline at end of file

chrome/app/generated_resources_grd/IDS_NTP_CUSTOM_BG_CANCEL.png.sha1

+4a07423b8d67a8c64a09924d1c051f67a20f363c
\ No newline at end of file

chrome/app/generated_resources_grd/IDS_NTP_CUSTOM_BG_DAILY_REFRESH.png.sha1

-03026243e9d04a43c3c10d6ceced3e1e16d884d7
\ No newline at end of file
+4a07423b8d67a8c64a09924d1c051f67a20f363c
\ No newline at end of file

chrome/app/generated_resources_grd/IDS_NTP_CUSTOM_BG_IMAGE_NOT_USABLE.png.sha1

+a00ae14f0391125309431b19754e9dd98ec6a077
\ No newline at end of file

chrome/app/generated_resources_grd/IDS_NTP_CUSTOM_BG_IMAGE_UNAVAILABLE.png.sha1

+f44d352720276759cf0bca00f2e8ca535598ea0f
\ No newline at end of file

chrome/app/generated_resources_grd/IDS_NTP_ERROR_MORE_INFO.png.sha1

+9f9debb77d3d9d1a3c4efa7987ca86a11ec1b770
\ No newline at end of file