Aura on Android: Stub implementation of UsbPrinterManifestHandler.

extensions/common/BUILD.gn

Index: extensions/common/BUILD.gn
diff --git a/extensions/common/BUILD.gn b/extensions/common/BUILD.gn
index c0bff59ac0ef77a74bbc8378df84ce60a1ffae05..f9f21bad9511c04c7feb1a02fbf45cfca5c59684 100644
--- a/extensions/common/BUILD.gn
+++ b/extensions/common/BUILD.gn
@@ -56,7 +56,6 @@ if (enable_extensions) {
       "//content/public/common",
       "//crypto",
       "//device/bluetooth",
-      "//device/usb",
       "//extensions/common/api",
       "//extensions/strings",
       "//extensions:extensions_resources",
@@ -72,6 +71,18 @@ if (enable_extensions) {
       "//url",
     ]
 
+    if (!is_android) {
+      deps += [ "//device/usb" ]

[mfomitchev, 2015/11/03 15:23:29]

Remove this conditionally rather than adding it conditionally. 

[Hadi, 2015/11/03 16:31:53]

Done.

+    } else {
+      sources -= [
+        "api/printer_provider/usb_printer_manifest_data.cc",
+        "api/printer_provider/usb_printer_manifest_data.h",
+        "api/printer_provider/usb_printer_manifest_handler.cc",
+      ]
+      sources +=
+          [ "api/printer_provider/usb_printer_manifest_handler_android.cc" ]

[mfomitchev, 2015/11/03 15:23:29]

Add this in gypi, then you won't need a special rule for it.

[Hadi, 2015/11/03 16:31:53]

Done.

+    }
+
     if (enable_nacl) {
       nacl_sources =
           rebase_path(extensions_gypi_values.extensions_common_sources_nacl,