Remove is_main_frame and some of the navigation hacks for --site-per-process.

These are no longer necessary now that we have RenderFrameHosts for all frames.

BUG=314791
TEST=Visit a cross-site iframe with --site-per-process.
[email protected]

Review URL: https://codereview.chromium.org/206953002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@258671 0039d316-1c4b-4281-b951-d872f2087c98
diff --git a/content/test/test_web_contents.h b/content/test/test_web_contents.h
index 18b70138..a0d6825 100644
--- a/content/test/test_web_contents.h
+++ b/content/test/test_web_contents.h
@@ -94,9 +94,8 @@
                                         int history_length,
                                         int32 min_page_id) OVERRIDE;
 
-  void TestDidFinishLoad(const GURL& url, bool is_main_frame);
+  void TestDidFinishLoad(const GURL& url);
   void TestDidFailLoadWithError(const GURL& url,
-                                bool is_main_frame,
                                 int error_code,
                                 const base::string16& error_description);