Bug 493131: Shorten DM strings, r=gavin

mobile/chrome/content/bindings/downloads.xml

@@ -128,9 +128,9 @@
           <xul:button anonid="showpage-button" label="&downloadShowPage.label;"
                       oncommand="DownloadsView.showPage(document.getBindingParent(this));"/>
           <xul:spacer flex="1"/>
-          <xul:button anonid="show-button" label="&downloadShow.label;"
+          <xul:button anonid="show-button" label="&downloadShow2.label;"
                       oncommand="DownloadsView.showDownload(document.getBindingParent(this));"/>
-          <xul:button anonid="open-button" label="&downloadOpen.label;"
+          <xul:button anonid="open-button" label="&downloadOpen2.label;"
                       oncommand="DownloadsView.openDownload(document.getBindingParent(this));"/>
           <xul:image anonid="remove-button" class="close-button"
                      onmousedown="DownloadsView.removeDownload(document.getBindingParent(this))"/>

mobile/locales/en-US/chrome/browser.dtd

@@ -72,8 +72,8 @@
 <!ENTITY downloadsSearch.emptytext "Search for downloaded file">
 
 <!ENTITY downloadShowPage.label    "Go to Page">
-<!ENTITY downloadShow.label        "Find File">
-<!ENTITY downloadOpen.label        "Open File">
+<!ENTITY downloadShow2.label       "Find">
+<!ENTITY downloadOpen2.label       "Open">
 <!ENTITY downloadCancel.label      "Cancel">
 <!ENTITY downloadPause.label       "Pause">
 <!ENTITY downloadResume.label      "Resume">