Allow URLFetcher to save results in a file. Have CRX updates use this capability.

chrome/common/net/test_url_fetcher_factory.cc

Index: chrome/common/net/test_url_fetcher_factory.cc
diff --git a/chrome/common/net/test_url_fetcher_factory.cc b/chrome/common/net/test_url_fetcher_factory.cc
index 04fea1b80192dad317faf7f3d80c9445a37bc836..b6768ed63189f77642ff5b7083a43d467750255c 100644
--- a/chrome/common/net/test_url_fetcher_factory.cc
+++ b/chrome/common/net/test_url_fetcher_factory.cc
@@ -30,6 +30,38 @@ void TestURLFetcher::AppendChunkToUpload(const std::string& data,
   chunks_.push_back(data);
 }
 
+void TestURLFetcher::set_status(const net::URLRequestStatus& status) {
+  fake_status_ = status;
+}
+
+void TestURLFetcher::SetResponseString(const std::string& response) {
+  response_destination_ = STRING;
+  fake_response_string_ = response;
+}
+
+void TestURLFetcher::SetResponseFilePath(const FilePath& path) {
+  response_destination_ = TEMP_FILE;
+  fake_response_file_path_ = path;
+}
+
+bool TestURLFetcher::GetResponseAsString(
+    std::string* out_response_string) const {
+  if (response_destination_ != STRING)
+    return false;
+
+  *out_response_string = fake_response_string_;
+  return true;
+}
+
+bool TestURLFetcher::GetResponseAsFilePath(
+    bool take_ownership, FilePath* out_response_path) const {
+  if (response_destination_ != TEMP_FILE)
+    return false;
+
+  *out_response_path = fake_response_file_path_;
+  return true;
+}
+
 TestURLFetcherFactory::TestURLFetcherFactory() {}
 
 TestURLFetcherFactory::~TestURLFetcherFactory() {}