[ChromeDriver] Expose CPU Profiling DevTools API into chromeWebDriver

chrome/test/chromedriver/chrome/stub_web_view.cc

Index: chrome/test/chromedriver/chrome/stub_web_view.cc
diff --git a/chrome/test/chromedriver/chrome/stub_web_view.cc b/chrome/test/chromedriver/chrome/stub_web_view.cc
index 33393ed0aa19adb94ff0f7b9510acb30fbee94be..59fb109b7dd12e93b64cb1204c662ab81459a945 100644
--- a/chrome/test/chromedriver/chrome/stub_web_view.cc
+++ b/chrome/test/chromedriver/chrome/stub_web_view.cc
@@ -131,3 +131,11 @@ Status StubWebView::SetFileInputFiles(
 Status StubWebView::TakeHeapSnapshot(scoped_ptr<base::Value>* snapshot) {
   return Status(kOk);
 }
+
+Status StubWebView::StartProfile() {
+  return Status(kOk);
+}
+
+Status StubWebView::EndProfile(scoped_ptr<base::Value>* profile_data) {
+  return Status(kOk);
+}