Add text autosizing override in the inspector.

Source/core/inspector/InspectorPageAgent.h

Index: Source/core/inspector/InspectorPageAgent.h
diff --git a/Source/core/inspector/InspectorPageAgent.h b/Source/core/inspector/InspectorPageAgent.h
index 49679d662ac5ad2525ea98554c05c447ef9b0561..d236b22d41fbf722818d3fac3568eb1b10d6d4d2 100644
--- a/Source/core/inspector/InspectorPageAgent.h
+++ b/Source/core/inspector/InspectorPageAgent.h
@@ -101,7 +101,7 @@ public:
     virtual void searchInResource(ErrorString*, const String& frameId, const String& url, const String& query, const bool* optionalCaseSensitive, const bool* optionalIsRegex, RefPtr<TypeBuilder::Array<TypeBuilder::Page::SearchMatch> >&);
     virtual void searchInResources(ErrorString*, const String&, const bool* caseSensitive, const bool* isRegex, RefPtr<TypeBuilder::Array<TypeBuilder::Page::SearchResult> >&);
     virtual void setDocumentContent(ErrorString*, const String& frameId, const String& html);
-    virtual void setDeviceMetricsOverride(ErrorString*, int width, int height, double deviceScaleFactor, bool fitWindow);
+    virtual void setDeviceMetricsOverride(ErrorString*, int width, int height, double deviceScaleFactor, bool fitWindow, int textAutosizingOverride);
     virtual void setShowPaintRects(ErrorString*, bool show);
     virtual void setShowDebugBorders(ErrorString*, bool show);
     virtual void setShowFPSCounter(ErrorString*, bool show);