Test runner: make inspector tests reuse a single inspector process.

content/shell/browser/layout_test/layout_test_devtools_frontend.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/shell/browser/layout_test/layout_test_devtools_frontend.h"
 
 #include "base/command_line.h"
 #include "base/path_service.h"
 #include "base/strings/stringprintf.h"
 #include "content/public/browser/web_contents.h"
@@ skipping 15 matching lines @@
                                         NULL,
                                         gfx::Size());
   LayoutTestDevToolsFrontend* devtools_frontend =
       new LayoutTestDevToolsFrontend(shell, agent.get());
 
   shell->LoadURL(GetDevToolsPathAsURL(settings, frontend_url));
 
   return devtools_frontend;
 }
 
-LayoutTestDevToolsFrontend::LayoutTestDevToolsFrontend(
-    Shell* frontend_shell,
-    DevToolsAgentHost* agent_host)
-    : ShellDevToolsFrontend(frontend_shell, agent_host) {
-}
-
-LayoutTestDevToolsFrontend::~LayoutTestDevToolsFrontend() {
-}
-
 // static.
 GURL LayoutTestDevToolsFrontend::GetDevToolsPathAsURL(
     const std::string& settings,
     const std::string& frontend_url) {
   if (!frontend_url.empty())
     return GURL(frontend_url);
   base::FilePath dir_exe;
   if (!PathService::Get(base::DIR_EXE, &dir_exe)) {
     NOTREACHED();
     return GURL();
   }
 #if defined(OS_MACOSX)
   // On Mac, the executable is in
   // out/Release/Content Shell.app/Contents/MacOS/Content Shell.
   // We need to go up 3 directories to get to out/Release.
   dir_exe = dir_exe.AppendASCII("../../..");
 #endif
   base::FilePath dev_tools_path =
       dir_exe.AppendASCII("resources/inspector/devtools.html");
 
   GURL result = net::FilePathToFileURL(dev_tools_path);
   if (!settings.empty())
     result = GURL(base::StringPrintf("%s?settings=%s&experiments=true",
                                      result.spec().c_str(),
                                      settings.c_str()));
   return result;
 }
 
+void LayoutTestDevToolsFrontend::ReuseFrontend(WebContents* inspected_contents,
+                                               const std::string& settings,
+                                               const std::string frontend_url) {
+  AttachTo(inspected_contents);
+  frontend_shell()->LoadURL(GetDevToolsPathAsURL(settings, frontend_url));
+}
+
+LayoutTestDevToolsFrontend::LayoutTestDevToolsFrontend(
+    Shell* frontend_shell,
+    DevToolsAgentHost* agent_host)
+    : ShellDevToolsFrontend(frontend_shell, agent_host) {
+}
+
+LayoutTestDevToolsFrontend::~LayoutTestDevToolsFrontend() {
+}
+
+void LayoutTestDevToolsFrontend::AgentHostClosed(
+    DevToolsAgentHost* agent_host, bool replaced) {
+  // Do not close the front-end shell.
+}
+
 void LayoutTestDevToolsFrontend::RenderProcessGone(
     base::TerminationStatus status) {
   WebKitTestController::Get()->DevToolsProcessCrashed();
 }
 
 }  // namespace content