[Cronet] Make Cronet buildable on regular Android bots.

net/BUILD.gn

Index: net/BUILD.gn
diff --git a/net/BUILD.gn b/net/BUILD.gn
index 8ebaaa03a197f1914321219fdc5462095892637e..3790a1d1df5dd09db8af3fa6362dbeed9edaa4b7 100644
--- a/net/BUILD.gn
+++ b/net/BUILD.gn
@@ -89,12 +89,10 @@ component("net") {
   deps = [
     ":net_resources",
     "//base",
-    "//base:i18n",
     "//base:prefs",
     "//base/third_party/dynamic_annotations",
     "//net/base/registry_controlled_domains",
     "//sdch",
-    "//third_party/icu",
     "//third_party/zlib",
     "//url",
   ]
@@ -512,19 +510,20 @@ component("net") {
   }
 
   if (use_icu_alternatives_on_android) {
-    deps -= [
+    sources += [
+      "base/net_string_util_icu_alternatives_android.cc",
+      "base/net_string_util_icu_alternatives_android.h",
+    ]
+  } else {
+    deps += [
       "//base:i18n",
       "//third_party/icu",
     ]
-    sources -= [
+    sources += [
       "base/filename_util_icu.cc",
       "base/net_string_util_icu.cc",
       "base/net_util_icu.cc",
     ]
-    sources += [
-      "base/net_string_util_icu_alternatives_android.cc",
-      "base/net_string_util_icu_alternatives_android.h",
-    ]
   }
 }