[Storage] Cache storage inspection on all the frames!

LayoutTests/http/tests/inspector/cache-storage/cache-data-expected.txt

Index: LayoutTests/http/tests/inspector/cache-storage/cache-data-expected.txt
diff --git a/LayoutTests/http/tests/inspector/cache-storage/cache-data-expected.txt b/LayoutTests/http/tests/inspector/cache-storage/cache-data-expected.txt
new file mode 100644
index 0000000000000000000000000000000000000000..ad063e27b9ab545296914fe5f6f08bf37ededd86
--- /dev/null
+++ b/LayoutTests/http/tests/inspector/cache-storage/cache-data-expected.txt
@@ -0,0 +1,23 @@
+CONSOLE MESSAGE: line 156: InspectorTest.CacheStorage_callback1Resolve

[pfeldman, 2015/04/10 12:35:33]

Lets not use console.log, but rather InspectorTest.addResult so that we did not
have to rebaseline tests every time we add a line into a harness.

[dmurph, 2015/04/13 18:23:03]

Hm, ok.  That's how IndexedDB did callbacks.

I took a shot at changing this and supporting it in the base InspectorTest.  It
uses promises, and now supports sending json-able arguments.

+CONSOLE MESSAGE: line 156: InspectorTest.CacheStorage_callback2Resolve
+CONSOLE MESSAGE: line 156: InspectorTest.CacheStorage_callback3Resolve
+CONSOLE MESSAGE: line 156: InspectorTest.CacheStorage_callback4Resolve
+CONSOLE MESSAGE: line 156: InspectorTest.CacheStorage_callback5Resolve
+CONSOLE MESSAGE: line 156: InspectorTest.CacheStorage_callback6Resolve
+Tests that cache data is correctly populated in the Inspector.
+
+Dumping CacheStorage tree:
+    (empty)
+Dumping CacheStorage tree:
+    cache: testCache1 - http://127.0.0.1:8000
+        (cache empty)
+    cache: testCache2 - http://127.0.0.1:8000
+        (cache empty)
+Dumping CacheStorage tree:
+    cache: testCache1 - http://127.0.0.1:8000
+        'http://fake.request.com/1': 'OK'
+        'http://fake.request.com/2': 'Not Found'
+    cache: testCache2 - http://127.0.0.1:8000
+        'http://fake.request2.com/1': 'OK'
+        'http://fake.request2.com/2': 'Not Found'
+