Collect tab timing information for use in telementry-based startup tests

Motivation: Data collection exposed in this CL is needed by upcoming startup tests we're writing using Telemtry.

Expose a new window.statsCollectionController object to JS and move existing histogram reading code into it since that seemed misplaced in DOMAutomationController.

Add a new --enable-stats-collection-bindings to activate said object.

Example usage in telemtry:
with browser.Create() as b:
  b.tabs[0].Navigate("http://www.google.com")
  b.tabs[0].WaitForDocumentReadyStateToBeComplete()
  print b.tabs[0].EvaluateJavaScript('statsCollectionController.tabLoadTiming()')

BUG=None

Review URL: https://chromiumcodereview.appspot.com/12389073

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@202620 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 0 insertions, 9 deletions

diff --git a/content/renderer/dom_automation_controller.h b/content/renderer/dom_automation_controller.h
index b4fe4c0..1516eea 100644
--- a/content/renderer/dom_automation_controller.h
+++ b/content/renderer/dom_automation_controller.h
@@ -115,15 +115,6 @@ class DomAutomationController : public webkit_glue::CppBoundClass {
     sender_ = sender;
   }
 
-  // Retrieves a histogram and returns a JSON representation of it.
-  void GetHistogram(const webkit_glue::CppArgumentList& args,
-                    webkit_glue::CppVariant* result);
-
-  // Retrieves a histogram from the browser process and returns a JSON
-  // representation of it.
-  void GetBrowserHistogram(const webkit_glue::CppArgumentList& args,
-                           webkit_glue::CppVariant* result);
-
  private:
   IPC::Sender* sender_;