Navigation transitions: Place transition page in same process as destination page.

content/browser/site_instance_impl_unittest.cc

Index: content/browser/site_instance_impl_unittest.cc
diff --git a/content/browser/site_instance_impl_unittest.cc b/content/browser/site_instance_impl_unittest.cc
index f76be5ee5b7da0760b09238f98165ff68df4bc13..897a09c71516a42843f8ee6741773c5d87c5ee14 100644
--- a/content/browser/site_instance_impl_unittest.cc
+++ b/content/browser/site_instance_impl_unittest.cc
@@ -372,6 +372,7 @@ TEST_F(SiteInstanceTest, IsSameWebSite) {
   GURL url_foo_https = GURL("https://foo/a.html");
   GURL url_foo_port = GURL("http://foo:8080/a.html");
   GURL url_javascript = GURL("javascript:alert(1);");
+  GURL url_blank = GURL(url::kAboutBlankURL);
 
   // Same scheme and port -> same site.
   EXPECT_TRUE(SiteInstance::IsSameWebSite(NULL, url_foo, url_foo2));
@@ -388,6 +389,16 @@ TEST_F(SiteInstanceTest, IsSameWebSite) {
   EXPECT_TRUE(SiteInstance::IsSameWebSite(NULL, url_javascript, url_foo_https));
   EXPECT_TRUE(SiteInstance::IsSameWebSite(NULL, url_javascript, url_foo_port));
 
+  // Navigating to a blank page is considered the same site.
+  EXPECT_TRUE(SiteInstance::IsSameWebSite(NULL, url_foo, url_blank));
+  EXPECT_TRUE(SiteInstance::IsSameWebSite(NULL, url_foo_https, url_blank));
+  EXPECT_TRUE(SiteInstance::IsSameWebSite(NULL, url_foo_port, url_blank));
+
+  // Navigating from a blank site is not considered to be the same site.
+  EXPECT_FALSE(SiteInstance::IsSameWebSite(NULL, url_blank, url_foo));
+  EXPECT_FALSE(SiteInstance::IsSameWebSite(NULL, url_blank, url_foo_https));
+  EXPECT_FALSE(SiteInstance::IsSameWebSite(NULL, url_blank, url_foo_port));
+
   DrainMessageLoops();
 }