Convert File App quick view strings to sentence case

Convert all messages with prefix IDS_FILE_BROWSER_METADATA.

Also fix 2 types: "for" and "screenshot" that I noticed.

Tested in a local chromeOS build.

Bug: 769395
Change-Id: Ie286f00f2ec54b3227ded5fedcd944e55ade1685
Reviewed-on: https://chromium-review.googlesource.com/952108Reviewed-by: Sasha Morrissey <sashab@chromium.org>
Commit-Queue: Luciano Pacheco (SYD) <lucmult@chromium.org>
Cr-Commit-Position: refs/heads/master@{#541979}

chrome/app/chromeos_strings.grdp

@@ -888,16 +888,16 @@
     Album
   </message>
   <message name="IDS_FILE_BROWSER_METADATA_BOX_AUDIO_INFO" desc="Category label for audio file info.">
-    Audio Info
+    Audio info
   </message>
   <message name="IDS_FILE_BROWSER_METADATA_BOX_CODEC" desc="Label for video codec.">
     Codec
   </message>
   <message name="IDS_FILE_BROWSER_METADATA_BOX_CREATED_BY" desc="Label for who created the file.">
-    Created By
+    Created by
   </message>
   <message name="IDS_FILE_BROWSER_METADATA_BOX_CREATION_TIME" desc="Label for file creation time.">
-    Created Time
+    Created time
   </message>
   <message name="IDS_FILE_BROWSER_METADATA_BOX_DIMENSION" desc="Label for image dimensions.">
     Dimensions
@@ -906,10 +906,10 @@
     Duration
   </message>
   <message name="IDS_FILE_BROWSER_METADATA_BOX_EXIF_DEVICE_MODEL" desc="Label for the device model which created the image.">
-    Device Model
+    Device model
   </message>
   <message name="IDS_FILE_BROWSER_METADATA_BOX_EXIF_DEVICE_SETTINGS" desc="Label for the device settings (exif's F number, exposure time, focal length and ISO speed rating) metadata.">
-    Device Settings
+    Device settings
   </message>
   <message name="IDS_FILE_BROWSER_METADATA_BOX_EXIF_GEOGRAPHY" desc="Label for the latitude and the longitude where the image was taken.">
     Geography
@@ -917,20 +917,20 @@
   <message name="IDS_FILE_BROWSER_METADATA_BOX_FILE_PATH" desc="Label for file path.">
     Path
   </message>
-  <message name="IDS_FILE_BROWSER_METADATA_BOX_FILE_SIZE" desc="Label fo file size.">
+  <message name="IDS_FILE_BROWSER_METADATA_BOX_FILE_SIZE" desc="Label for file size.">
     Size
   </message>
   <message name="IDS_FILE_BROWSER_METADATA_BOX_FRAME_RATE" desc="Label for video frame rate.">
-    Frame Rate
+    Frame rate
   </message>
   <message name="IDS_FILE_BROWSER_METADATA_BOX_GENERAL_INFO" desc="Category label for general file info.">
-    General Info
+    General info
   </message>
   <message name="IDS_FILE_BROWSER_METADATA_BOX_GENRE" desc="Label for audio genre.">
     Genre
   </message>
   <message name="IDS_FILE_BROWSER_METADATA_BOX_IMAGE_INFO" desc="Category label for image file info.">
-    Image Info
+    Image info
   </message>
   <message name="IDS_FILE_BROWSER_METADATA_BOX_MEDIA_ARTIST" desc="Label for media artist.">
     Artist
@@ -942,13 +942,13 @@
     Title
   </message>
   <message name="IDS_FILE_BROWSER_METADATA_BOX_MODIFICATION_TIME" desc="Label for file modification time.">
-    Modified Time
+    Modified time
   </message>
   <message name="IDS_FILE_BROWSER_METADATA_BOX_MODIFIED_BY" desc="Label for who modified the file.">
-    Modified By
+    Modified by
   </message>
   <message name="IDS_FILE_BROWSER_METADATA_BOX_PAGE_COUNT" desc="Label for pdf page count.">
-    Page Count
+    Page count
   </message>
   <message name="IDS_FILE_BROWSER_METADATA_BOX_SOURCE" desc="Label for the device used to capture the image.">
     Source
@@ -957,10 +957,10 @@
     Track
   </message>
   <message name="IDS_FILE_BROWSER_METADATA_BOX_VIDEO_INFO" desc="Category label for video file info.">
-    Video Info
+    Video info
   </message>
   <message name="IDS_FILE_BROWSER_METADATA_BOX_YEAR_RECORDED" desc="Label for audio recorded year.">
-    Year Recorded
+    Year recorded
   </message>
   <message name="IDS_FILE_BROWSER_CALCULATING_SIZE" desc="Message informing the user that total items size is being calculated.">
     Calculating size
@@ -4817,7 +4817,7 @@
   <message name="IDS_SCREENSHOT_NOTIFICATION_BUTTON_COPY_TO_CLIPBOARD" desc="The button label for the screenshot notification which copies the screenshot image to clipboard on click.">
     Copy to clipboard
   </message>
-  <message name="IDS_SCREENSHOT_NOTIFICATION_BUTTON_ANNOTATE" desc="The label for the screenshot notification button that opens the note-taking app to annotate the screenhsot.">
+  <message name="IDS_SCREENSHOT_NOTIFICATION_BUTTON_ANNOTATE" desc="The label for the screenshot notification button that opens the note-taking app to annotate the screenshot.">
     Annotate image
   </message>