Change allowed bindings to be per RenderFrame instead of per RenderView.

content/browser/frame_host/render_frame_host_manager_browsertest.cc

Index: content/browser/frame_host/render_frame_host_manager_browsertest.cc
diff --git a/content/browser/frame_host/render_frame_host_manager_browsertest.cc b/content/browser/frame_host/render_frame_host_manager_browsertest.cc
index e8b4bc26ee4b02bc3589fd52d4af4f5698b4d591..a391b818b1c8b6f032caf1f2964e589871cf1686 100644
--- a/content/browser/frame_host/render_frame_host_manager_browsertest.cc
+++ b/content/browser/frame_host/render_frame_host_manager_browsertest.cc
@@ -1831,7 +1831,7 @@ IN_PROC_BROWSER_TEST_F(RenderFrameHostManagerTest, WebUIGetsBindings) {
       GetRenderManagerForTesting()->GetSwappedOutRenderViewHost(site_instance1);
   ASSERT_TRUE(initial_rvh);
   // The following condition is what was causing the bug.
-  EXPECT_EQ(0, initial_rvh->GetEnabledBindings());
+  // EXPECT_EQ(0, initial_rvh->GetMainFrame()->GetEnabledBindings());

[Charlie Reis, 2017/01/18 22:18:43]

Ok.  Can we replace it with an EXPECT_FALSE version of the HasWebUIBindings
check on line 1812, so that we're checking the process instead?

If so, let's do that.  If not, just remove these two lines rather than have them
commented out (or maybe leave a comment saying what the bug used to be).

[Sam McNally, 2017/01/19 05:30:37]

No, that's true since both webui WebContents end up in the same renderer
process, and process was granted the webui bindings for the first WebContents.

[Charlie Reis, 2017/01/19 17:58:55]

Acknowledged.

 
   // Navigate to url1 and check bindings.
   NavigateToURL(new_shell, url1);
@@ -1839,7 +1839,7 @@ IN_PROC_BROWSER_TEST_F(RenderFrameHostManagerTest, WebUIGetsBindings) {
   // |initial_rvh| did not have a chance to be used.
   EXPECT_EQ(new_web_contents->GetSiteInstance(), site_instance1);
   EXPECT_EQ(BINDINGS_POLICY_WEB_UI,
-      new_web_contents->GetRenderViewHost()->GetEnabledBindings());
+            new_web_contents->GetMainFrame()->GetEnabledBindings());
 }
 
 // crbug.com/424526