Plumb network stack information about existence of cached copy

content/test/content_browser_test.cc

Index: content/test/content_browser_test.cc
diff --git a/content/test/content_browser_test.cc b/content/test/content_browser_test.cc
index a1644503a4f373c280f185a5802c8dcf76f6b9dc..cb4a713626249da3adb59ae8ac00cf21e5c22d00 100644
--- a/content/test/content_browser_test.cc
+++ b/content/test/content_browser_test.cc
@@ -55,8 +55,6 @@ ContentBrowserTest::~ContentBrowserTest() {
 }
 
 void ContentBrowserTest::SetUp() {
-  setup_called_ = true;
-
   shell_main_delegate_.reset(new ShellMainDelegate);
   shell_main_delegate_->PreSandboxStartup();
 
@@ -65,12 +63,12 @@ void ContentBrowserTest::SetUp() {
 
   SetUpCommandLine(command_line);
 
-  // Single-process mode is not set in BrowserMain, so process it explicitly,
-  // and set up renderer.
-  if (command_line->HasSwitch(switches::kSingleProcess)) {
-    single_process_renderer_client_.reset(new ShellContentRendererClient);
-    SetRendererClientForTesting(single_process_renderer_client_.get());
-  }
+  // Single-process mode is not set in BrowserMain, so if a subclass hasn't
+  // modified it yet, process it explicitly, and set up renderer.
+  if (!single_process_renderer_client_.get() &&
+      command_line->HasSwitch(switches::kSingleProcess))
+    SetContentRendererClient(
+        scoped_ptr<ContentRendererClient>(new ShellContentRendererClient));
 
 #if defined(OS_MACOSX)
   // See InProcessBrowserTest::PrepareTestCommandLine().
@@ -89,6 +87,8 @@ void ContentBrowserTest::SetUp() {
   ui::InitializeInputMethodForTesting();
 #endif
 
+  setup_called_ = true;
+
   BrowserTestBase::SetUp();
 }
 
@@ -144,6 +144,13 @@ void ContentBrowserTest::RunTestOnMainThreadLoop() {
   Shell::CloseAllWindows();
 }
 
+void ContentBrowserTest::SetContentRendererClient(
+    scoped_ptr<ContentRendererClient> renderer_client) {
+  DCHECK(!setup_called_);
+  single_process_renderer_client_ = renderer_client.Pass();
+  SetRendererClientForTesting(single_process_renderer_client_.get());
+}
+
 Shell* ContentBrowserTest::CreateBrowser() {
   return Shell::CreateNewWindow(
       ShellContentBrowserClient::Get()->browser_context(),