[content shell] add support for testRunner.canOpenWindows and disallow opening windows per default …

content/shell/shell_content_browser_client.cc

Index: content/shell/shell_content_browser_client.cc
diff --git a/content/shell/shell_content_browser_client.cc b/content/shell/shell_content_browser_client.cc
index 401919947714ad1345ab374b2340c95d35995364..e806f3667591b3ebca3fcb2edd850d06e13dd653 100644
--- a/content/shell/shell_content_browser_client.cc
+++ b/content/shell/shell_content_browser_client.cc
@@ -121,6 +121,19 @@ WebContentsViewDelegate* ShellContentBrowserClient::GetWebContentsViewDelegate(
   return NULL;
 }
 
+bool ShellContentBrowserClient::CanCreateWindow(
+    const GURL& opener_url,
+    const GURL& origin,
+    WindowContainerType container_type,
+    ResourceContext* context,
+    int render_process_id,
+    bool* no_javascript_access) {
+  *no_javascript_access = false;
+  if (!CommandLine::ForCurrentProcess()->HasSwitch(switches::kDumpRenderTree))
+    return true;
+  return WebKitTestController::Get()->can_open_windows();
+}
+
 #if defined(OS_ANDROID)
 void ShellContentBrowserClient::GetAdditionalMappedFilesForChildProcess(
     const CommandLine& command_line,