PDF Viewer update: Hook up rotation button

Add new rotate counterclockwise label, and hook up the button for the
new toolbar.

Bug: 1105965
Change-Id: I9e665a4f3f547fd574c0f797cfd4a46046f42f9f
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2300230
Reviewed-by: Lei Zhang <[email protected]>
Reviewed-by: dsinclair <[email protected]>
Reviewed-by: dpapad <[email protected]>
Commit-Queue: Rebekah Potter <[email protected]>
Cr-Commit-Position: refs/heads/master@{#789209}
diff --git a/components/pdf_strings.grdp b/components/pdf_strings.grdp
index beb6f50..c511d5cf 100644
--- a/components/pdf_strings.grdp
+++ b/components/pdf_strings.grdp
@@ -40,6 +40,9 @@
     <message name="IDS_PDF_TOOLTIP_ROTATE_CW" desc="Button tooltip for the button which rotates a PDF document clockwise">
       Rotate clockwise
     </message>
+    <message name="IDS_PDF_TOOLTIP_ROTATE_CCW" desc="Button tooltip for the button which rotates a PDF document counterclockwise">
+      Rotate counterclockwise
+    </message>
     <message name="IDS_PDF_TOOLTIP_DOWNLOAD" desc="Button tooltip for the button to download a PDF document">
       Download
     </message>