Web Inspector: HAR pageref attributes are wrong and inconsistent with pages array

Web Inspector: HAR pageref attributes are wrong and inconsistent with pages array
https://bugs.webkit.org/show_bug.cgi?id=76398

Reviewed by Pavel Feldman.

Source/WebCore:

- introduce a notion of LoadPage;
- move page load times to LoadPage;
- associate network resources with LoadPage;
- export pages for all available resoruces to HAR, not just the last page;
- use page ids, not document URLs in HAR entries to refer to pages;
- use page URL as a title field of a HAR page;

* inspector/front-end/AuditsPanel.js:
(WebInspector.AuditsPanel):
* inspector/front-end/HAREntry.js:
(WebInspector.HAREntry.prototype.build):
(WebInspector.HAREntry.prototype.get responseCompression):
(WebInspector.HARLog.prototype._buildPages):
(WebInspector.HARLog.prototype._convertPage):
(WebInspector.HARLog.prototype._pageEventTime):
* inspector/front-end/NetworkLog.js:
(WebInspector.NetworkLog):
(WebInspector.NetworkLog.prototype._mainFrameNavigated):
(WebInspector.NetworkLog.prototype._onResourceStarted):
(WebInspector.Page):
(WebInspector.Page.prototype.get id):
(WebInspector.Page.prototype.get url):
(WebInspector.Page.prototype.get contentLoadTime):
(WebInspector.Page.prototype.set contentLoadTime):
(WebInspector.Page.prototype.get loadTime):
(WebInspector.Page.prototype.set loadTime):
(WebInspector.Page.prototype.get startTime):
(WebInspector.Page.prototype._bindResource):
* inspector/front-end/NetworkManager.js:
(WebInspector.NetworkDispatcher.prototype.requestServedFromMemoryCache):
* inspector/front-end/Resource.js:
(WebInspector.Resource.prototype.get page):
(WebInspector.Resource.prototype.set page):
* inspector/front-end/ResourceTreeModel.js:
(WebInspector.ResourceTreeFrame):
(WebInspector.ResourceTreeFrame.prototype.get page):
(WebInspector.PageDispatcher.prototype.domContentEventFired):
(WebInspector.PageDispatcher.prototype.loadEventFired):

LayoutTests:

* http/tests/inspector/resource-har-headers-expected.txt:
* http/tests/inspector/resource-parameters-expected.txt:
* platform/chromium/http/tests/inspector/resource-har-conversion-expected.txt:

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@105596 268f45cc-cd09-0410-ab3c-d52691b4dbfc