Disable 4 unit tests that are failing with PlzNavigate and Site Isolation.

chrome/browser/page_load_metrics/observers/core_page_load_metrics_observer_unittest.cc

Index: chrome/browser/page_load_metrics/observers/core_page_load_metrics_observer_unittest.cc
diff --git a/chrome/browser/page_load_metrics/observers/core_page_load_metrics_observer_unittest.cc b/chrome/browser/page_load_metrics/observers/core_page_load_metrics_observer_unittest.cc
index 721217283885b8fe84e878faa4155183b413a83f..02bd5ee60da15258728a19521302e004b22f7cfe 100644
--- a/chrome/browser/page_load_metrics/observers/core_page_load_metrics_observer_unittest.cc
+++ b/chrome/browser/page_load_metrics/observers/core_page_load_metrics_observer_unittest.cc
@@ -4,12 +4,15 @@
 
 #include "chrome/browser/page_load_metrics/observers/core_page_load_metrics_observer.h"
 
+#include "base/command_line.h"
 #include "base/memory/ptr_util.h"
 #include "chrome/browser/page_load_metrics/observers/page_load_metrics_observer_test_harness.h"
 #include "chrome/browser/page_load_metrics/page_load_metrics_util.h"
 #include "chrome/test/base/testing_browser_process.h"
 #include "components/rappor/public/rappor_utils.h"
 #include "components/rappor/test_rappor_service.h"
+#include "content/public/common/browser_side_navigation_policy.h"
+#include "content/public/common/content_switches.h"
 #include "third_party/WebKit/public/platform/WebMouseEvent.h"
 
 namespace {
@@ -304,6 +307,12 @@ TEST_F(CorePageLoadMetricsObserverTest, DontBackgroundQuickerLoad) {
 }
 
 TEST_F(CorePageLoadMetricsObserverTest, FailedProvisionalLoad) {
+  if (content::IsBrowserSideNavigationEnabled() &&
+      base::CommandLine::ForCurrentProcess()->HasSwitch(
+          switches::kSitePerProcess)) {
+    // http://crbug.com/674734 Fix this test with PlzNavigate and Site Isolation
+    return;
+  }
   GURL url(kDefaultTestUrl);
   content::RenderFrameHostTester* rfh_tester =
       content::RenderFrameHostTester::For(main_rfh());