google_apis: Increase the default history size of EventLogger

100 turned out to be too small for investigating an obscure issue like
crbug.com/237044.

BUG=238946
TEST=none
R=hidehiko@chromium.org

Review URL: https://codereview.chromium.org/14660018

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@198861 0039d316-1c4b-4281-b951-d872f2087c98

chrome/browser/google_apis/event_logger.h

@@ -18,7 +18,7 @@
 namespace google_apis {
 
 // The default history size used by EventLogger.
-const int kDefaultHistorySize = 100;
+const int kDefaultHistorySize = 1000;
 
 // EventLogger is used to collect and expose text messages for diagnosing
 // behaviors of Google APIs stuff. For instance, the collected messages are