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https://bugs.webkit.org/show_bug.cgi?id=18517

Reviewed by Adam Roben.

* page/inspector/ResourcesPanel.js:
(WebInspector.ResourcesPanel.prototype.reset): Close the visible resource.
Iterate over all the resources and zero errors and warnings and delete the
resource view and tree element. Removes all children of resourceViews. Passes
true to _updateGraphDividersIfNeeded to force an immediate update.
(WebInspector.ResourcesPanel.prototype.removeResource): Added. Closes
the resource view if it is visible. Removes the resource from the _resources
array. Removes the tree element from the outline tree. Zeros out the errors
and warnings properties. Deletes the tree element and resource view properties.
(WebInspector.ResourcesPanel.prototype.closeVisibleResource): Null check
this._calculator for times when reset is called before the calculator is set.
* page/inspector/inspector.js:
(WebInspector.removeResource): Call ResourcesPanel.removeResource.


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@31918 268f45cc-cd09-0410-ab3c-d52691b4dbfc