Revert "Revert 215542 "[Telemetry] Add HTML output and make it the default.""

tools/telemetry/telemetry/core/browser_options.py

Index: tools/telemetry/telemetry/core/browser_options.py
diff --git a/tools/telemetry/telemetry/core/browser_options.py b/tools/telemetry/telemetry/core/browser_options.py
index 983d14636ce5460296d7ba2851de39564e736fc3..2daf439ccb08dc69032457c3bb65268e7bcb52fd 100644
--- a/tools/telemetry/telemetry/core/browser_options.py
+++ b/tools/telemetry/telemetry/core/browser_options.py
@@ -52,6 +52,7 @@ class BrowserOptions(optparse.Values):
     self.no_proxy_server = False
 
     self.repeat_options = repeat_options.RepeatOptions()
+    self.output_file = None
 
   def Copy(self):
     return copy.deepcopy(self)
@@ -205,6 +206,10 @@ class BrowserOptions(optparse.Values):
       if self.profile_type == 'default':
         self.dont_override_profile = True
 
+      if ((hasattr(self, 'output_format') and self.output_format == 'html') and
+          (not hasattr(self, 'output_file') or not self.output_file)):
+        self.output_file = os.path.join(util.GetBaseDir(), 'results.html')
+
       # Parse repeat options
       self.repeat_options.UpdateFromParseResults(self, parser)