Remove dead code since PDFWebContentsHelper::ShowOpenInReaderPrompt isn't called anymore.

chrome/app/generated_resources.grd

Index: chrome/app/generated_resources.grd
diff --git a/chrome/app/generated_resources.grd b/chrome/app/generated_resources.grd
index 2ceed933c70347e6b5ebbe21f29dce2fc66ae5cf..b3c84276b503b4e49b4a4f216cd8a7a5b5d9e8eb 100644
--- a/chrome/app/generated_resources.grd
+++ b/chrome/app/generated_resources.grd
@@ -7504,9 +7504,6 @@ Keep your key file in a safe place. You will need it to create new versions of y
       <message name="IDS_ACCNAME_ZOOM" desc="The accessible name for the zoom button.">
         Zoom
       </message>
-      <message name="IDS_ACCNAME_OPEN_PDF_IN_READER" desc="The accessible name for the Open PDF in Reader button.">
-        Open PDF in Reader
-      </message>
       <message name="IDS_ACCNAME_FIND" desc="The accessible name for the find button.">
         Find
       </message>
@@ -12856,54 +12853,6 @@ Tell us what happened exactly before you got the profile error message:
         Ignore
       </message>
 
-      <!-- PDF reader related strings. Not used on Android -->
-      <if expr="not is_android">
-        <!-- PDF with unsupported feature bubble -->
-        <message name="IDS_PDF_BUBBLE_MESSAGE" desc="Message for the bubble when a user views a PDF with an unsupported feature">
-          Parts of this PDF document could not be displayed.
-        </message>
-        <message name="IDS_PDF_BUBBLE_OPEN_IN_READER_LINK" desc="Title of the link to open a PDF with an unsupported feature in Adobe Reader">
-          Open in Adobe Reader
-        </message>
-        <message name="IDS_PDF_BUBBLE_INSTALL_READER_LINK" desc="Title of the link to open a PDF with an unsupported feature in Adobe Reader">
-          Install Adobe Reader
-        </message>
-        <if expr="is_win">
-          <message name="IDS_PDF_BUBBLE_METRO_MODE_LINK" desc="Title of the link to restart Chrome on Windows 8 in metro mode when viewing a PDF with an unsupported feature.">
-            Relaunch Chrome on the desktop
-          </message>
-        </if>
-        <message name="IDS_PDF_INFOBAR_QUESTION_ALWAYS_USE_READER" desc="Question asked on the info bar when a user opens a PDF with Reader and we want to ask them if they always want to use it for viewing PDF files.">
-          Use Adobe Reader as your default PDF viewer?
-        </message>
-        <message name="IDS_PDF_INFOBAR_ALWAYS_USE_READER_BUTTON" desc="The label of the 'always' button on the infobar that asks the user if they want to set Adobe Reader as default.">
-          Always
-        </message>
-        <message name="IDS_PDF_PASSWORD_DIALOG_TITLE" desc="The title of the dialog requesting a password to open a protected PDF.">
-          Password required
-        </message>
-
-        <!-- Adobe Reader is out of date Blocking Page -->
-        <message name="IDS_READER_OUT_OF_DATE_BLOCKING_PAGE_TITLE" desc="The title of the Adobe Reader out of date blocking page.">
-          Adobe Reader Out Of Date
-        </message>
-        <message name="IDS_READER_OUT_OF_DATE_BLOCKING_PAGE_BODY" desc="The body of the Adobe Reader out of date blocking page.">
-          Adobe Reader is out of date and may be insecure.
-        </message>
-        <message name="IDS_READER_OUT_OF_DATE_BLOCKING_PAGE_UPDATE" desc="The name of the radio button option to go to the Adobe Reader installer website.">
-          Update Adobe Reader now
-        </message>
-        <message name="IDS_READER_OUT_OF_DATE_BLOCKING_PAGE_PROCEED" desc="The name of the radio button to proceed to open the PDF with the out of date Adobe Reader.">
-          Proceed without updating Adobe Reader (not recommended)
-        </message>
-        <message name="IDS_READER_OUT_OF_DATE_BLOCKING_PAGE_OK" desc="OK button text of the Adobe Reader out of date blocking page.">
-          OK
-        </message>
-        <message name="IDS_READER_OUT_OF_DATE_BLOCKING_PAGE_CANCEL" desc="Cancel button text of the Adobe Reader out of date blocking page.">
-          Cancel
-        </message>
-      </if>
-
       <!-- Media Capture messages -->
       <message name="IDS_MEDIA_CAPTURE_AUDIO_AND_VIDEO" desc="Question asked on the info bar whenever a web page requests access to the computer's microphone and camera.">
         <ph name="HOST">$1<ex>html5rocks.com</ex></ph> wants to use your camera and microphone.