AU: Switch GLib's timeout sources from milliseconds to seconds.

There's no need for the extra resolution and seconds is preferred.

BUG=5577
TEST=unit tests, gmerged on device and saw checks at 2 and 30 minutes.

Change-Id: I6d64774d5a0e8961fbb9868edc42e62eb794ba11

Review URL: http://codereview.chromium.org/3183004
diff --git a/libcurl_http_fetcher.cc b/libcurl_http_fetcher.cc
index 7bee4c1..0707d99 100644
--- a/libcurl_http_fetcher.cc
+++ b/libcurl_http_fetcher.cc
@@ -112,9 +112,9 @@
         if (delegate_)
           delegate_->TransferComplete(this, false);  // success
       } else {
-        g_timeout_add(5 * 1000,
-                      &LibcurlHttpFetcher::StaticRetryTimeoutCallback,
-                      this);
+        g_timeout_add_seconds(5,
+                              &LibcurlHttpFetcher::StaticRetryTimeoutCallback,
+                              this);
       }
       return;
     } else {
@@ -229,7 +229,7 @@
   }
   if (!timeout_source_) {
     LOG(INFO) << "setting up timeout source:" << ms;
-    timeout_source_ = g_timeout_source_new(1000);
+    timeout_source_ = g_timeout_source_new_seconds(1);
     CHECK(timeout_source_);
     g_source_set_callback(timeout_source_, StaticTimeoutCallback, this,
                           NULL);