Remove stylesheet injection from Blink.

public/web/WebView.h

Index: public/web/WebView.h
diff --git a/public/web/WebView.h b/public/web/WebView.h
index a7e9f990611547052bf658d4e0b3eef9f3eb5bb2..7c9c9b82d328d7ded64228da45a8f36ed5b713dc 100644
--- a/public/web/WebView.h
+++ b/public/web/WebView.h
@@ -426,13 +426,6 @@ public:
                                     unsigned inactiveBackgroundColor,
                                     unsigned inactiveForegroundColor) = 0;
 
-    // Injected style ------------------------------------------------------
-
-    // Treats |sourceCode| as a CSS author style sheet and injects it into all Documents whose URLs match |patterns|,
-    // in the frames specified by the last argument.
-    BLINK_EXPORT static void injectStyleSheet(const WebString& sourceCode, const WebVector<WebString>& patterns, StyleInjectionTarget);
-    BLINK_EXPORT static void removeInjectedStyleSheets();
-
     // Modal dialog support ------------------------------------------------
 
     // Call these methods before and after running a nested, modal event loop