Fix condition in test.

Just noticed that it fails sometimes on our (yandex) bots.
transmitted_start can indeed be equal to the lower bound here.

BUG=

Review-Url: https://codereview.chromium.org/2558633008
Cr-Commit-Position: refs/heads/master@{#437536}

content/renderer/render_view_browsertest.cc

@@ -1993,7 +1993,7 @@ TEST_F(RenderViewImplTest, RendererNavigationStartTransmittedToBrowser) {
       ProcessAndReadIPC<FrameHostMsg_DidStartProvisionalLoad>();
   base::TimeTicks transmitted_start = std::get<1>(host_nav_params);
   EXPECT_FALSE(transmitted_start.is_null());
-  EXPECT_LT(lower_bound_navigation_start, transmitted_start);
+  EXPECT_LE(lower_bound_navigation_start, transmitted_start);
 }
 
 // Checks that a browser-initiated navigation in an initial document that was