Telemetry: add multitab tests framework.

Adds to Telemetry the ability to map pages to tabs instead of having
all pages open sequentially in a single tab.

BUG=chromium:249906
TEST=ran the modified memory_multi_tab test

Review URL: https://codereview.chromium.org/26705004

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@229623 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 7 insertions, 20 deletions

diff --git a/tools/perf/profile_creators/small_profile_creator.py b/tools/perf/profile_creators/small_profile_creator.py
index 69fb0f9..0f51a60 100644
--- a/tools/perf/profile_creators/small_profile_creator.py
+++ b/tools/perf/profile_creators/small_profile_creator.py
@@ -6,7 +6,6 @@ import os
 
 from telemetry.core import util
 from telemetry.page import page_set
-from telemetry.page import page_runner
 from telemetry.page import profile_creator
 
 class SmallProfileCreator(profile_creator.ProfileCreator):
@@ -19,29 +18,17 @@ class SmallProfileCreator(profile_creator.ProfileCreator):
     typical_25 = os.path.join(util.GetBaseDir(), 'page_sets', 'typical_25.json')
     self._page_set = page_set.PageSet.FromFile(typical_25)
 
-    # Open all links in the same tab save for the last N_NUM_TABS links which
+    # Open all links in the same tab save for the last _NUM_TABS links which
     # are each opened in a new tab.
     self._NUM_TABS = 5
 
-  def CanRunForPage(self, page):
+  def TabForPage(self, page, tab):
     idx = page.page_set.pages.index(page)
-    return idx <= (len(page.page_set.pages) - self._NUM_TABS)
-
-  def DidNavigateToPage(self, page, tab):
-    num_pages_in_pageset = len(page.page_set.pages)
-    last_tab_loaded_automatically = num_pages_in_pageset - self._NUM_TABS
-    page_index = page.page_set.pages.index(page)
-    if (page_index == last_tab_loaded_automatically):
-      for i in xrange(last_tab_loaded_automatically + 1, num_pages_in_pageset):
-        # Load the last _NUM_TABS pages, each in a new tab.
-        t = tab.browser.tabs.New()
-
-        page_state = page_runner.PageState()
-        page_state.PreparePage(page.page_set.pages[i], t)
-        page_state.ImplicitPageNavigation(page.page_set.pages[i], t)
-
-        t.WaitForDocumentReadyStateToBeInteractiveOrBetter()
-
+    # The last _NUM_TABS pages open a new tab.
+    if idx <= (len(page.page_set.pages) - self._NUM_TABS):
+      return tab
+    else:
+      return tab.browser.tabs.New()
 
   def MeasurePage(self, _, tab, results):
     # Can't use WaitForDocumentReadyStateToBeComplete() here due to