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

Source/devtools/front_end/SourceFrame.js

Index: Source/devtools/front_end/SourceFrame.js
diff --git a/Source/devtools/front_end/SourceFrame.js b/Source/devtools/front_end/SourceFrame.js
index 659825c0ac42bc1c2bf765fa32f5e56e0ed3f011..873121baad6a5029b5852b21c638afb7589a2773 100644
--- a/Source/devtools/front_end/SourceFrame.js
+++ b/Source/devtools/front_end/SourceFrame.js
@@ -343,7 +343,13 @@ WebInspector.SourceFrame.prototype = {
         } else
             this._textEditor.editRange(this._textEditor.range(), content || "");
 
-        this._textEditor.mimeType = this._simplifyMimeType(mimeType);
+        mimeType = this._simplifyMimeType(mimeType);
+
+        // 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(/\<\?.*\?\>/gi))
+            mimeType = "application/x-httpd-php";
+
+        this._textEditor.mimeType = mimeType;
 
         this._textEditor.beginUpdates();