Implement declarative content script API for <webview> [js part].

chrome/browser/apps/web_view_browsertest.cc

Index: chrome/browser/apps/web_view_browsertest.cc
diff --git a/chrome/browser/apps/web_view_browsertest.cc b/chrome/browser/apps/web_view_browsertest.cc
index eaaa40afd78abb53dd1d516ad7f699fb0e01e4cd..47ac58073fa77f99d4eaa6e8c33538bf0615be22 100644
--- a/chrome/browser/apps/web_view_browsertest.cc
+++ b/chrome/browser/apps/web_view_browsertest.cc
@@ -926,6 +926,14 @@ IN_PROC_BROWSER_TEST_F(WebViewTest, Shim_TestWebRequestAPIExistence) {
   TestHelper("testWebRequestAPIExistence", "web_view/shim", NO_TEST_SERVER);
 }
 
+// Tests the existence of DeclarativeContent API event objects on the request
+// object, on the webview element, and hanging directly off webview.
+IN_PROC_BROWSER_TEST_F(WebViewTest, Shim_TestDeclarativeContentAPIExistence) {
+  TestHelper("testDeclarativeContentAPIExistence",
+             "web_view/shim",
+             NO_TEST_SERVER);
+}
+
 // http://crbug.com/315920
 #if defined(GOOGLE_CHROME_BUILD) && (defined(OS_WIN) || defined(OS_LINUX))
 #define MAYBE_Shim_TestChromeExtensionURL DISABLED_Shim_TestChromeExtensionURL