Replace page_runner.py --output (and -o) flag with --output-dir

tools/telemetry/telemetry/page/page_runner.py

Index: tools/telemetry/telemetry/page/page_runner.py
diff --git a/tools/telemetry/telemetry/page/page_runner.py b/tools/telemetry/telemetry/page/page_runner.py
index ebae4a8c657cd0d5e31a68fa535ae462348d436d..e42d091483753322d3668dfd538d6365890931b6 100644
--- a/tools/telemetry/telemetry/page/page_runner.py
+++ b/tools/telemetry/telemetry/page/page_runner.py
@@ -7,7 +7,6 @@ import optparse
 import os
 import random
 import sys
-import tempfile
 import time
 
 from telemetry import decorators
@@ -38,7 +37,6 @@ class _RunState(object):
     self._did_login_for_current_page = False
     self._current_page = None
     self._current_tab = None
-    self.profiler_dir = None
 
   def StartBrowserIfNeeded(self, test, page_set, page, possible_browser,
                           finder_options):
@@ -166,9 +164,7 @@ class _RunState(object):
       self._append_to_existing_wpr = True
 
   def StartProfiling(self, page, finder_options):
-    if not self.profiler_dir:
-      self.profiler_dir = tempfile.mkdtemp()
-    output_file = os.path.join(self.profiler_dir, page.file_safe_name)
+    output_file = os.path.join(finder_options.output_dir, page.file_safe_name)
     is_repeating = (finder_options.page_repeat != 1 or
                     finder_options.pageset_repeat != 1)
     if is_repeating:
@@ -220,6 +216,7 @@ def AddCommandLineArgs(parser):
 
 def ProcessCommandLineArgs(parser, args):
   page_filter.PageFilter.ProcessCommandLineArgs(parser, args)
+  results_options.ProcessCommandLineArgs(parser, args)
 
   # Page set options
   if args.pageset_shuffle_order_file and not args.pageset_shuffle: