pdf: use ui::TouchEditable menu constants

The ui::TouchEditable menu recently changed to use its own constants
for command IDs rather than abusing IDS constants; the uses of these
constants in //components/pdf were missed.

Bug: 10707568
Change-Id: I5ccd267b032bc4dfe4841efd6203dc53b6fddb96
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2154908Reviewed-by: Sadrul Chowdhury <sadrul@chromium.org>
Reviewed-by: Lei Zhang <thestig@chromium.org>
Commit-Queue: Elly Fong-Jones <ellyjones@chromium.org>
Cr-Commit-Position: refs/heads/master@{#760529}

components/pdf/browser/DEPS

 include_rules = [
   "+content/public/browser",
   "+mojo/public/cpp/bindings",
+  "+ui/base",
   "+ui/touch_selection",
-  "+ui/strings",
 ]
 
 specific_include_rules = {

components/pdf/browser/pdf_web_contents_helper.cc

@@ -10,9 +10,9 @@
 #include "components/pdf/browser/pdf_web_contents_helper_client.h"
 #include "content/public/browser/render_widget_host_view.h"
 #include "content/public/common/referrer_type_converters.h"
+#include "ui/base/pointer/touch_editing_controller.h"
 #include "ui/gfx/geometry/point_conversions.h"
 #include "ui/gfx/geometry/point_f.h"
-#include "ui/strings/grit/ui_strings.h"
 
 namespace pdf {
 
@@ -170,7 +170,7 @@ bool PDFWebContentsHelper::IsCommandIdEnabled(int command_id) const {
   bool readable = true;
 
   switch (command_id) {
-    case IDS_APP_COPY:
+    case ui::TouchEditable::kCopy:
       return readable && has_selection_;
       // TODO(wjmaclean): add logic for cut/paste as the information required
       // from PDFium becomes available.
@@ -182,7 +182,7 @@ void PDFWebContentsHelper::ExecuteCommand(int command_id, int event_flags) {
   // TODO(wjmaclean, dsinclair): Need to communicate to PDFium to accept
   // cut/paste commands.
   switch (command_id) {
-    case IDS_APP_COPY:
+    case ui::TouchEditable::kCopy:
       web_contents()->Copy();
       break;
   }