Increase HTTP request timeout to make dev server happy.

BUG=none
TEST=unit tested, gmerged and tested with dev server

Review URL: http://codereview.chromium.org/3035024
diff --git a/libcurl_http_fetcher.cc b/libcurl_http_fetcher.cc
index 12b11a0..3ae5fbf 100644
--- a/libcurl_http_fetcher.cc
+++ b/libcurl_http_fetcher.cc
@@ -55,10 +55,10 @@
                             StaticLibcurlWrite), CURLE_OK);
   CHECK_EQ(curl_easy_setopt(curl_handle_, CURLOPT_URL, url_.c_str()), CURLE_OK);
 
-  // If the connection drops under 10 bytes/sec for 90 seconds, reconnect.
+  // If the connection drops under 10 bytes/sec for 3 minutes, reconnect.
   CHECK_EQ(curl_easy_setopt(curl_handle_, CURLOPT_LOW_SPEED_LIMIT, 10),
            CURLE_OK);
-  CHECK_EQ(curl_easy_setopt(curl_handle_, CURLOPT_LOW_SPEED_TIME, 90),
+  CHECK_EQ(curl_easy_setopt(curl_handle_, CURLOPT_LOW_SPEED_TIME, 3 * 60),
            CURLE_OK);
 
   CHECK_EQ(curl_multi_add_handle(curl_multi_handle_, curl_handle_), CURLM_OK);
@@ -98,7 +98,7 @@
     } else {
       LOG(ERROR) << "Unable to get http response code.";
     }
-    
+
     // we're done!
     CleanUp();