libaddressinput - one less copy when downloading data

net/url_request/test_url_fetcher_factory.cc

Index: net/url_request/test_url_fetcher_factory.cc
diff --git a/net/url_request/test_url_fetcher_factory.cc b/net/url_request/test_url_fetcher_factory.cc
index 0a96153d6e6dc3516747a717be7c6523bce2d03f..304ebe643a18861d34e0e7807a27e570dc1ff42d 100644
--- a/net/url_request/test_url_fetcher_factory.cc
+++ b/net/url_request/test_url_fetcher_factory.cc
@@ -11,6 +11,7 @@
 #include "base/memory/weak_ptr.h"
 #include "base/message_loop/message_loop.h"
 #include "net/base/host_port_pair.h"
+#include "net/base/io_buffer.h"
 #include "net/base/net_errors.h"
 #include "net/http/http_response_headers.h"
 #include "net/url_request/url_fetcher_delegate.h"
@@ -155,6 +156,22 @@ void TestURLFetcher::SaveResponseToTemporaryFile(
 
 void TestURLFetcher::SaveResponseWithWriter(
     scoped_ptr<URLFetcherResponseWriter> response_writer) {
+  if (fake_response_destination_ == STRING) {
+    response_writer_ = response_writer.Pass();
+    int response = response_writer_->Initialize(CompletionCallback());
+    // The TestURLFetcher doesn't handle asynchronous writes.
+    DCHECK_EQ(OK, response);
+
+    scoped_refptr<IOBuffer> buffer(new StringIOBuffer(fake_response_string_));
+    response = response_writer_->Write(buffer.get(),
+                                       fake_response_string_.size(),
+                                       CompletionCallback());
+    DCHECK_EQ(OK, response);
+    response = response_writer_->Finish(CompletionCallback());
+    DCHECK_EQ(OK, response);
+  } else {
+    NOTIMPLEMENTED();
+  }
 }
 
 HttpResponseHeaders* TestURLFetcher::GetResponseHeaders() const {