Revert 124622 - Change kB to KB for consistency.

Reverting as it breaks BytesFormattingTest.FormatBytes

BUG=chromium-os:22812
TEST=Open task manager or downloads, and observe KB instead of kB.
Review URL: https://chromiumcodereview.appspot.com/9490008

TBR=dgozman@chromium.org
Review URL: https://chromiumcodereview.appspot.com/9572006

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@124623 0039d316-1c4b-4281-b951-d872f2087c98

ui/base/strings/ui_strings.grd

@@ -343,7 +343,7 @@ need to be translated for each locale.-->
         <ph name="QUANTITY">$1<ex>42</ex></ph> B
       </message>
       <message name="IDS_APP_KIBIBYTES" desc="Units tag indicating a quantity of kilobytes">
-        <ph name="QUANTITY">$1<ex>42.0</ex></ph> KB
+        <ph name="QUANTITY">$1<ex>42.0</ex></ph> kB
       </message>
       <message name="IDS_APP_MEBIBYTES" desc="Units tag indicating a quantity of megabytes">
         <ph name="QUANTITY">$1<ex>42.0</ex></ph> MB
@@ -361,7 +361,7 @@ need to be translated for each locale.-->
         <ph name="QUANTITY">$1<ex>42</ex></ph> B/s
       </message>
       <message name="IDS_APP_KIBIBYTES_PER_SECOND" desc="Units tag indicating a speed of kilobytes/second">
-        <ph name="QUANTITY">$1<ex>42.0</ex></ph> KB/s
+        <ph name="QUANTITY">$1<ex>42.0</ex></ph> kB/s
       </message>
       <message name="IDS_APP_MEBIBYTES_PER_SECOND" desc="Units tag indicating a speed of megabytes/second">
         <ph name="QUANTITY">$1<ex>42.0</ex></ph> MB/s