[Android WebView] Put AndroidStreamReaderURLRequestJob into a namespace

android_webview/browser/net/android_stream_reader_url_request_job_unittest.cc

Index: android_webview/browser/net/android_stream_reader_url_request_job_unittest.cc
diff --git a/android_webview/browser/net/android_stream_reader_url_request_job_unittest.cc b/android_webview/browser/net/android_stream_reader_url_request_job_unittest.cc
index 651d01d1e924529026426ca53718a3ec3fe93dba..37416bafe6fb538637221b7731613d83ce63cbbb 100644
--- a/android_webview/browser/net/android_stream_reader_url_request_job_unittest.cc
+++ b/android_webview/browser/net/android_stream_reader_url_request_job_unittest.cc
@@ -22,8 +22,6 @@
 #include "testing/gmock/include/gmock/gmock.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
-using android_webview::InputStream;
-using android_webview::InputStreamReader;
 using net::TestDelegate;
 using net::TestJobInterceptor;
 using net::TestNetworkDelegate;
@@ -45,6 +43,10 @@ using testing::WithArg;
 using testing::WithArgs;
 using testing::_;
 
+namespace android_webview {
+
+namespace {
+
 // Some of the classes will DCHECK on a null InputStream (which is desirable).
 // The workaround is to use this class. None of the methods need to be
 // implemented as the mock InputStreamReader should never forward calls to the
@@ -179,6 +181,9 @@ class TestStreamReaderJob : public AndroidStreamReaderURLRequestJob {
   scoped_refptr<base::SingleThreadTaskRunner> task_runner_;
 };
 
+}  // namespace
+
+
 class AndroidStreamReaderURLRequestJobTest : public Test {
  public:
   AndroidStreamReaderURLRequestJobTest() {}
@@ -415,3 +420,5 @@ TEST_F(AndroidStreamReaderURLRequestJobTest, DeleteJobMidWayRead) {
   req_->Cancel();
   EXPECT_EQ(1, network_delegate_.completed_requests());
 }
+
+}  // namespace android_webview