Remove dependency of 'browser_ui' on 'libusb' when building for iOS

chrome/browser/ui/BUILD.gn

Index: chrome/browser/ui/BUILD.gn
diff --git a/chrome/browser/ui/BUILD.gn b/chrome/browser/ui/BUILD.gn
index 47f8af42bcac57ec62a1a69b147ba725f8d7132a..57ac9b02f359de1fc21f828b31d88031c1963494 100644
--- a/chrome/browser/ui/BUILD.gn
+++ b/chrome/browser/ui/BUILD.gn
@@ -61,7 +61,6 @@ static_library("ui") {
     "//skia",
     "//third_party/cacheinvalidation",
     "//third_party/icu",
-    "//third_party/libusb",
     "//third_party/libxml",
     "//third_party/zlib",
     "//ui/accessibility",
@@ -135,8 +134,9 @@ static_library("ui") {
                     ".",
                     "//chrome")
     deps += [
-      "//device/bluetooth",
       "//components/copresence",
+      "//device/bluetooth",
+      "//third_party/libusb",
     ]
   }
 
@@ -317,7 +317,6 @@ static_library("ui") {
     deps -= [
       "//chrome/browser/ui/views",
       "//components/feedback/proto",
-      "//third_party/libusb",
       "//ui/events",
     ]
     sources += rebase_path(gypi_values.chrome_browser_ui_android_sources,