Fix subframe loads with RenderViewTest when PlzNavigate is enabled.

content/test/test_render_frame.cc

Index: content/test/test_render_frame.cc
diff --git a/content/test/test_render_frame.cc b/content/test/test_render_frame.cc
index f8ccea2d6de77dcbbb4e115e259acc209d6cff30..23476a7a08432de08fdaafc20227377d714ce75e 100644
--- a/content/test/test_render_frame.cc
+++ b/content/test/test_render_frame.cc
@@ -8,6 +8,7 @@
 #include "content/common/resource_request_body_impl.h"
 #include "content/public/common/browser_side_navigation_policy.h"
 #include "content/public/common/resource_response.h"
+#include "third_party/WebKit/public/web/WebLocalFrame.h"
 
 namespace content {
 
@@ -70,4 +71,18 @@ void TestRenderFrame::SetCompositionFromExistingText(
   OnSetCompositionFromExistingText(start, end, underlines);
 }
 
+blink::WebNavigationPolicy TestRenderFrame::decidePolicyForNavigation(
+    const blink::WebFrameClient::NavigationPolicyInfo& info) {
+  if (IsBrowserSideNavigationEnabled() &&
+      info.urlRequest.checkForBrowserSideNavigation() &&
+      GetWebFrame()->parent() &&
+      info.form.isNull()) {
+    // RenderViewTest::LoadHTML already disables PlzNavigate for the main frame
+    // requests. However if the loaded html has a subframe, the WebURLRequest
+    // will be created inside Blink and it wono't have this flag set.

[jam39, 2016/12/08 16:19:01]

won't *

+    info.urlRequest.setCheckForBrowserSideNavigation(false);
+  }
+  return RenderFrameImpl::decidePolicyForNavigation(info);
+}
+
 }  // namespace content