DevTools: [CodeMirror] Add syntax highlighting for some other languages.

Source/devtools/front_end/SourceFrame.js

 /*
  * Copyright (C) 2011 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 300 matching lines @@
         this._innerScrollToLineIfNeeded();
     },
 
     onTextChanged: function(oldRange, newRange)
     {
         if (!this._isReplacing)
             WebInspector.searchController.cancelSearch();
         this.clearMessages();
     },
 
-    _simplifyMimeType: function(mimeType)
+    _simplifyMimeType: function(content, mimeType)
     {
         if (!mimeType)
             return "";
         if (mimeType.indexOf("javascript") >= 0 ||
             mimeType.indexOf("jscript") >= 0 ||
             mimeType.indexOf("ecmascript") >= 0)
             return "text/javascript";
+        // A hack around the fact that files with "php" extension might be either standalone or html embedded php scripts.
+        if (mimeType === "text/x-php" && content.match(/\<\?.*\?\>/g))
+            return "application/x-httpd-php";
         return mimeType;
     },
 
     /**
      * @param {?string} content
      * @param {boolean} contentEncoded
      * @param {string} mimeType
      */
     setContent: function(content, contentEncoded, mimeType)
     {
         if (!this._loaded) {
             this._loaded = true;
             this._textEditor.setText(content || "");
             this._textEditor.markClean();
         } else
             this._textEditor.editRange(this._textEditor.range(), content || "");
 
-        this._textEditor.mimeType = this._simplifyMimeType(mimeType);
+        this._textEditor.mimeType = this._simplifyMimeType(content, mimeType);
 
         this._textEditor.beginUpdates();
 
         this._setTextEditorDecorations();
 
         this._wasShownOrLoaded();
 
         if (this._delayedFindSearchMatches) {
             this._delayedFindSearchMatches();
             delete this._delayedFindSearchMatches;
@@ skipping 455 matching lines @@
      * @return {Element}
      */
     createLink: function(hrefValue, isExternal)
     {
         var targetLocation = WebInspector.ParsedURL.completeURL(this._sourceFrame._url, hrefValue);
         return WebInspector.linkifyURLAsNode(targetLocation || hrefValue, hrefValue, undefined, isExternal);
     },
 
     __proto__: WebInspector.TextEditorDelegate.prototype
 }