Add chrome side webusb permission UI code

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 9cd320567ef9ada059e029823da1a90c73538ffe..7a9c754a64eeed6875c255a95b0935e1284d7f2f 100644
--- a/chrome/app/generated_resources.grd
+++ b/chrome/app/generated_resources.grd
@@ -15279,6 +15279,20 @@ Please check your email at <ph name="ACCOUNT_EMAIL">$2<ex>jane.doe@gmail.com</ex
         </message>
       </if>
 
+    <if expr="not is_android and not is_ios">
+      <!-- Chooser Bubble Prompt -->
+      <message name="IDS_CHOOSER_BUBBLE_PROMPT" desc="The label that is used to introduce chooser details to the user in a popup.">
+        This site wants to connect to:
+      </message>
+    </if>
+
+    <if expr="not is_android and not is_ios">
+      <!-- Chooser Bubble No Devices Found Prompt -->
+      <message name="IDS_CHOOSER_BUBBLE_NO_DEVICES_FOUND_PROMPT" desc="The label that is used to inform user that no devices found in the chooser popup.">
+        No devices found.
+      </message>
+    </if>
+
     </messages>
   </release>
 </grit>