Simplify ExecuteJavaScript* functions.

chrome/browser/extensions/window_open_apitest.cc

Index: chrome/browser/extensions/window_open_apitest.cc
diff --git a/chrome/browser/extensions/window_open_apitest.cc b/chrome/browser/extensions/window_open_apitest.cc
index f2d77fbfe07ce6dcc59be1f40b46218037b8662a..1c8a406c9ac0eda1e07766a4562c52f81ece5e75 100644
--- a/chrome/browser/extensions/window_open_apitest.cc
+++ b/chrome/browser/extensions/window_open_apitest.cc
@@ -391,8 +391,8 @@ IN_PROC_BROWSER_TEST_F(ExtensionBrowserTest, WindowOpenExtension) {
                           start_url.Resolve("newtab.html"), true, &newtab));
 
   bool result = false;
-  ASSERT_TRUE(content::ExecuteJavaScriptAndExtractBool(
-      newtab->GetRenderViewHost(), "", "testExtensionApi()", &result));
+  ASSERT_TRUE(content::ExecuteScriptAndExtractBool(newtab, "testExtensionApi()",
+                                                   &result));
   EXPECT_TRUE(result);
 }
 
@@ -428,7 +428,7 @@ IN_PROC_BROWSER_TEST_F(ExtensionBrowserTest, WindowOpenNoPrivileges) {
 
   // Extension API should succeed.
   bool result = false;
-  ASSERT_TRUE(content::ExecuteJavaScriptAndExtractBool(
-      newtab->GetRenderViewHost(), "", "testExtensionApi()", &result));
+  ASSERT_TRUE(content::ExecuteScriptAndExtractBool(newtab, "testExtensionApi()",
+                                                   &result));
   EXPECT_TRUE(result);
 }