<webview>: First stab at implementing media permission request for guests.

chrome/browser/extensions/web_view_browsertest.cc

 // Copyright (c) 2012 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 "base/stringprintf.h"
 #include "base/utf_string_conversions.h"
 #include "chrome/browser/automation/automation_util.h"
 #include "chrome/browser/extensions/extension_test_message_listener.h"
 #include "chrome/browser/extensions/platform_app_browsertest_util.h"
 #include "chrome/browser/prerender/prerender_link_manager.h"
 #include "chrome/browser/prerender/prerender_link_manager_factory.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/browser/ui/tabs/tab_strip_model.h"
+#include "chrome/common/chrome_switches.h"
 #include "chrome/test/base/ui_test_utils.h"
 #include "chrome/test/base/test_launcher_utils.h"
+#include "chrome/test/base/ui_test_utils.h"
 #include "content/public/browser/notification_service.h"
 #include "content/public/browser/render_process_host.h"
+#include "content/public/browser/web_contents_delegate.h"
 #include "content/public/test/browser_test_utils.h"
 #include "content/public/test/fake_speech_recognition_manager.h"
 #include "ui/compositor/compositor_setup.h"
 #include "ui/gl/gl_switches.h"
 
 using prerender::PrerenderLinkManager;
 using prerender::PrerenderLinkManagerFactory;
 
+// This class intercepts media access request from the embedder. The request
+// should be triggered only if the embedder API (from tests) allows the request
+// in Javascript.
+// We do not issue the actual media request; the fact that the request reached
+// embedder's WebContents is good enough for our tests. This is also to make
+// the test run successfully on trybots.
+class MockWebContentsDelegate : public content::WebContentsDelegate {
+ public:
+  MockWebContentsDelegate() : requested_(false) {}
+  virtual ~MockWebContentsDelegate() {}
+
+  virtual void RequestMediaAccessPermission(
+      content::WebContents* web_contents,
+      const content::MediaStreamRequest& request,
+      const content::MediaResponseCallback& callback) OVERRIDE {
+    requested_ = true;
+    if (message_loop_runner_)
+      message_loop_runner_->Quit();
+  }
+
+  void WaitForSetMediaPermission() {
+    if (requested_)
+      return;
+    message_loop_runner_ = new content::MessageLoopRunner;
+    message_loop_runner_->Run();
+  }
+
+ private:
+  bool requested_;
+  scoped_refptr<content::MessageLoopRunner> message_loop_runner_;
+};
+
 class WebViewTest : public extensions::PlatformAppBrowserTest {
  protected:
   virtual void SetUpCommandLine(CommandLine* command_line) OVERRIDE {
     extensions::PlatformAppBrowserTest::SetUpCommandLine(command_line);
 #if !defined(OS_MACOSX)
     CHECK(test_launcher_utils::OverrideGLImplementation(
           command_line, gfx::kGLImplementationOSMesaName)) <<
           "kUseGL must not be set by test framework code!";
 #endif
+    const testing::TestInfo* const test_info =
+        testing::UnitTest::GetInstance()->current_test_info();
+    bool requires_experimental =
+      !strcmp(test_info->name(), "MediaAccessAPIAllow") ||
+      !strcmp(test_info->name(), "MediaAccessAPIDeny");
+    if (requires_experimental) {
+      CommandLine::ForCurrentProcess()->AppendSwitch(
+          switches::kEnableExperimentalExtensionApis);
+    }
   }
 
   virtual void SetUp() OVERRIDE {
     const testing::TestInfo* const test_info =
         testing::UnitTest::GetInstance()->current_test_info();
 
     // SpeechRecognition test specific SetUp.
     if (!strcmp(test_info->name(), "SpeechRecognition")) {
       fake_speech_recognition_manager_.reset(
           new content::FakeSpeechRecognitionManager());
@@ skipping 618 matching lines @@
       "  if (e.target.result.version == 1)"
       "    document.title = 'db not found';"
       "  else "
       "    document.title = 'error';"
       "}";
   ExecuteScriptWaitForTitle(browser()->tab_strip_model()->GetWebContentsAt(0),
                             script, "db not found");
   ExecuteScriptWaitForTitle(default_tag_contents1, script, "db not found");
 }
 
+IN_PROC_BROWSER_TEST_F(WebViewTest, MediaAccessAPIDeny) {
+  ASSERT_TRUE(StartTestServer());  // For serving guest pages.
+  ASSERT_TRUE(RunPlatformAppTest(
+      "platform_apps/web_view/media_access/deny")) << message_;
+}
+
+IN_PROC_BROWSER_TEST_F(WebViewTest, MediaAccessAPIAllow) {
+  ASSERT_TRUE(StartTestServer());  // For serving guest pages.
+  ExtensionTestMessageListener launched_listener("Launched", false);
+  LoadAndLaunchPlatformApp("web_view/media_access/allow");
+  ASSERT_TRUE(launched_listener.WaitUntilSatisfied());
+
+  content::WebContents* embedder_web_contents =
+      GetFirstShellWindowWebContents();
+  ASSERT_TRUE(embedder_web_contents);
+  MockWebContentsDelegate* mock = new MockWebContentsDelegate;
+  embedder_web_contents->SetDelegate(mock);
+
+  const size_t num_tests = 4;
+  std::string test_names[num_tests] = {
+    "testAllow",
+    "testAllowAndThenDeny",
+    "testAllowTwice",
+    "testAllowAsync",
+  };
+  for (size_t i = 0; i < num_tests; ++i) {
+    ExtensionTestMessageListener done_listener("DoneMediaTest", false);
+    EXPECT_TRUE(
+        content::ExecuteScript(
+            embedder_web_contents,
+            base::StringPrintf("startAllowTest('%s')",
+                               test_names[i].c_str())));
+    done_listener.WaitUntilSatisfied();
+
+    std::string result;
+    EXPECT_TRUE(
+        content::ExecuteScriptAndExtractString(
+            embedder_web_contents,
+            "window.domAutomationController.send(getTestStatus())", &result));
+    ASSERT_EQ(std::string("PASSED"), result);
+
+    mock->WaitForSetMediaPermission();
+  }
+}
+
 IN_PROC_BROWSER_TEST_F(WebViewTest, SpeechRecognition) {
   ASSERT_TRUE(StartTestServer());
   std::string host_str("localhost");  // Must stay in scope with replace_host.
   GURL::Replacements replace_host;
   replace_host.SetHostStr(host_str);
 
   GURL guest_url = test_server()->GetURL(
       "files/extensions/platform_apps/web_view/speech/guest.html");
   guest_url = guest_url.ReplaceComponents(replace_host);
 
@@ skipping 13 matching lines @@
   // Click on the guest (center of the WebContents), the guest is rendered in a
   // way that this will trigger clicking on speech recognition input mic.
   SimulateMouseClick(guest_web_contents, 0, WebKit::WebMouseEvent::ButtonLeft);
 
   string16 expected_title(ASCIIToUTF16("PASSED"));
   string16 error_title(ASCIIToUTF16("FAILED"));
   content::TitleWatcher title_watcher(guest_web_contents, expected_title);
   title_watcher.AlsoWaitForTitle(error_title);
   EXPECT_EQ(expected_title, title_watcher.WaitAndGetTitle());
 }