Update from https://crrev.com/333737

tools/android/forwarder2/BUILD.gn

Index: tools/android/forwarder2/BUILD.gn
diff --git a/tools/android/forwarder2/BUILD.gn b/tools/android/forwarder2/BUILD.gn
index acbd617be994fe591ca8d21e99865e0db11f54e6..fbc9097834f8aff1127f49085f90d88f8ea9025a 100644
--- a/tools/android/forwarder2/BUILD.gn
+++ b/tools/android/forwarder2/BUILD.gn
@@ -53,6 +53,9 @@ if (current_toolchain == default_toolchain) {
   create_native_executable_dist("device_forwarder_prepare_dist") {
     dist_dir = "$root_build_dir/forwarder_dist"
     binary = "$root_build_dir/exe.stripped/device_forwarder"
+    deps = [
+      ":device_forwarder",
+    ]
   }
 }
 
@@ -94,5 +97,8 @@ if (current_toolchain != default_toolchain) {
     outputs = [
       "$root_build_dir/host_forwarder",
     ]
+    deps = [
+      ":host_forwarder",
+    ]
   }
 }