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

chrome/browser/extensions/web_view_browsertest.cc

Index: chrome/browser/extensions/web_view_browsertest.cc
diff --git a/chrome/browser/extensions/web_view_browsertest.cc b/chrome/browser/extensions/web_view_browsertest.cc
index 158fc3e937287c9d1af7f7933a23b0fbed04096e..dbbb30eb9cbac6969ef092434f6961bc78e6d09c 100644
--- a/chrome/browser/extensions/web_view_browsertest.cc
+++ b/chrome/browser/extensions/web_view_browsertest.cc
@@ -6,8 +6,8 @@
 #include "chrome/browser/automation/automation_util.h"
 #include "chrome/browser/extensions/platform_app_browsertest_util.h"
 #include "chrome/browser/ui/browser_tabstrip.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/test/browser_test_utils.h"
@@ -608,3 +608,13 @@ IN_PROC_BROWSER_TEST_F(WebViewTest, IndexedDBIsolation) {
                             script, "db not found");
   ExecuteScriptWaitForTitle(default_tag_contents1, script, "db not found");
 }
+
+IN_PROC_BROWSER_TEST_F(WebViewTest, MediaAccessApi) {
+  ASSERT_TRUE(StartTestServer());  // For serving guest pages.
+  ASSERT_TRUE(RunPlatformAppTest(
+      "platform_apps/web_view_media_access/embedder_has_permission"))
+          << message_;
+  ASSERT_TRUE(RunPlatformAppTest(
+      "platform_apps/web_view_media_access/embedder_has_no_permission"))
+          << message_;
+}