[Storage] Cache storage inspection on all the frames!

LayoutTests/http/tests/inspector/inspector-test.js

 var initialize_InspectorTest = function() {
 
 var results = [];
 
 function consoleOutputHook(messageType)
 {
     InspectorTest.addResult(messageType + ": " + Array.prototype.slice.call(arguments, 1));
 }
 
 window._originalConsoleLog = console.log.bind(console);
@@ skipping 411 matching lines @@
         try {
             Array.prototype.push.call(arguments, result);
             override.apply(this, arguments);
         } catch (e) {
             throw ("Exception in overriden method '" + methodName + "': " + e);
         }
         return result;
     };
 }
 
+InspectorTest.addSnifferPromise = function(receiver, methodName)
+{
+    return new Promise(function (resolve, reject) {
+            var original = receiver[methodName];

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

poor indent.

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

Removed.

+            if (typeof original !== "function") {
+                reject("Cannot find method to override: " + methodName);
+                return;
+            }
+
+            receiver[methodName] = function(var_args) {
+                try {
+                    var result = original.apply(this, arguments);
+                } finally {
+                    receiver[methodName] = original;
+                }
+                // In case of exception the override won't be called.
+                try {
+                    Array.prototype.push.call(arguments, result);
+                    resolve.apply(this, arguments);
+                } catch (e) {
+                    reject("Exception in overriden method '" + methodName + "': " + e);
+                }
+                return result;
+            };
+        });
+}
+
 InspectorTest.addConsoleSniffer = function(override, opt_sticky)
 {
     InspectorTest.addSniffer(WebInspector.ConsoleModel.prototype, "addMessage", override, opt_sticky);
 }
 
 InspectorTest.override = function(receiver, methodName, override, opt_sticky)
 {
     override = InspectorTest.safeWrap(override);
 
     var original = receiver[methodName];
@@ skipping 516 matching lines @@
     _output("[page] " + text);
 }
 
 function _output(result)
 {
     if (!outputElement)
         createOutputElement();
     outputElement.appendChild(document.createTextNode(result));
     outputElement.appendChild(document.createElement("br"));
 }