Fix build failure of chrome_public_apk on Android GN build

chrome/browser/usb/usb_tab_helper.h

Index: chrome/browser/usb/usb_tab_helper.h
diff --git a/chrome/browser/usb/usb_tab_helper.h b/chrome/browser/usb/usb_tab_helper.h
index 7d4cec513ceb3f5bb92e6632be0b020ad505ec7d..a12a5a4f6dd28f0fe3aca066cc2621481aa1c70e 100644
--- a/chrome/browser/usb/usb_tab_helper.h
+++ b/chrome/browser/usb/usb_tab_helper.h
@@ -41,9 +41,11 @@ class UsbTabHelper : public content::WebContentsObserver,
       content::RenderFrameHost* render_frame_host,
       mojo::InterfaceRequest<device::usb::DeviceManager> request);
 
+#if !defined(OS_ANDROID)
   void CreatePermissionBubble(
       content::RenderFrameHost* render_frame_host,
       mojo::InterfaceRequest<webusb::WebUsbPermissionBubble> request);
+#endif
 
  private:
   explicit UsbTabHelper(content::WebContents* web_contents);
@@ -59,9 +61,11 @@ class UsbTabHelper : public content::WebContentsObserver,
       content::RenderFrameHost* render_frame_host,
       mojo::InterfaceRequest<device::usb::PermissionProvider> request);
 
+#if !defined(OS_ANDROID)
   void GetPermissionBubble(
       content::RenderFrameHost* render_frame_host,
       mojo::InterfaceRequest<webusb::WebUsbPermissionBubble> request);
+#endif
 
   FrameUsbServicesMap frame_usb_services_;