Implement ownProperty() and inheritFrom() assertions in should()

third_party/WebKit/LayoutTests/webaudio/unit-tests/audit-expected.txt

Index: third_party/WebKit/LayoutTests/webaudio/unit-tests/audit-expected.txt
diff --git a/third_party/WebKit/LayoutTests/webaudio/unit-tests/audit-expected.txt b/third_party/WebKit/LayoutTests/webaudio/unit-tests/audit-expected.txt
index fc77c5954983dbad7bd2e0b643d959f486ba7976..f9c81fc0979b264a9648b257968c5abea71c309f 100644
--- a/third_party/WebKit/LayoutTests/webaudio/unit-tests/audit-expected.txt
+++ b/third_party/WebKit/LayoutTests/webaudio/unit-tests/audit-expected.txt
@@ -36,10 +36,13 @@ PASS   1 is less than or equal to 1.
 PASS   1 is equal to 1. 
 PASS   should(1).beEqualTo(1) is true. 
 PASS   The message is truthful! 
+PASS   BaseAudioContext.prototype has an own property of "createGain". 
+PASS   A BufferSourceNode inherits from "AudioScheduledSourceNode". 
+PASS   A BufferSourceNode inherits from "AudioNode". 
 PASS   Decoding audio data with no argument rejected correctly with TypeError: Failed to execute 'decodeAudioData' on 'BaseAudioContext': 1 argument required, but only 0 present.. 
 PASS   Suspending OAC with no argument rejected correctly with TypeError. 
 PASS   Start OAC rendering resolved correctly. 
-PASS < [basic] All assertions passed. (total 22 assertions) 
+PASS < [basic] All assertions passed. (total 25 assertions) 
 PASS > [load-file-in-should] Test Audit.loadFileFromUrl() within |should| assertion. 
 PASS   Loading file within should().beResolved() resolved correctly. 
 PASS < [load-file-in-should] All assertions passed. (total 1 assertions)