Remove Client= from device/serial/data_stream.mojom.

device/serial/data_sink_unittest.cc

Index: device/serial/data_sink_unittest.cc
diff --git a/device/serial/data_sink_unittest.cc b/device/serial/data_sink_unittest.cc
index 248436235f54fe5ed6c4d00913e47bc14bdfd400..539cb6d427648c6648c20c991d5bc45e34d8bd9e 100644
--- a/device/serial/data_sink_unittest.cc
+++ b/device/serial/data_sink_unittest.cc
@@ -38,12 +38,11 @@ class DataSinkTest : public testing::Test {
   void SetUp() override {
     message_loop_.reset(new base::MessageLoop);
     mojo::InterfacePtr<serial::DataSink> sink_handle;
-    sink_receiver_ = mojo::WeakBindToProxy(
-        new DataSinkReceiver(
-            base::Bind(&DataSinkTest::OnDataToRead, base::Unretained(this)),
-            base::Bind(&DataSinkTest::OnCancel, base::Unretained(this)),
-            base::Bind(&DataSinkTest::OnError, base::Unretained(this))),
-        &sink_handle);
+    sink_receiver_ = new DataSinkReceiver(
+        mojo::GetProxy(&sink_handle),
+        base::Bind(&DataSinkTest::OnDataToRead, base::Unretained(this)),
+        base::Bind(&DataSinkTest::OnCancel, base::Unretained(this)),
+        base::Bind(&DataSinkTest::OnError, base::Unretained(this)));
     sender_.reset(new DataSender(sink_handle.Pass(), kBufferSize, kFatalError));
   }