The use of charset in a MIME-type interferes with our type maps,
preventing the right syntax highlighting mode and pretty printing.

https://bugs.webkit.org/show_bug.cgi?id=121723

Reviewed by Joseph Pecoraro.

* UserInterface/ConsolePrompt.js:
(WebInspector.ConsolePrompt):
* UserInterface/FontResourceContentView.js:
* UserInterface/Resource.js:
(WebInspector.Resource.Type.fromMIMEType):
(WebInspector.Resource.prototype.get mimeTypeComponents):
(WebInspector.Resource.prototype.get syntheticMIMEType):
(WebInspector.Resource.prototype.get contentURL):
(WebInspector.Resource.prototype.updateForResponse):
* UserInterface/ResourceDetailsSidebarPanel.js:
(WebInspector.ResourceDetailsSidebarPanel.prototype._refreshRequestDataSection):
* UserInterface/SourceMapResource.js:
(WebInspector.SourceMapResource.prototype.requestContentFromBackend):
* UserInterface/SyntaxHighlightingSupport.js:
(WebInspector.syntaxHighlightStringAsDocumentFragment):
* UserInterface/TextEditor.js:
(WebInspector.TextEditor.prototype.set mimeType):
* UserInterface/Utilities.js:
(parseMIMEType): Added.


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@156209 268f45cc-cd09-0410-ab3c-d52691b4dbfc