Remove bogus use of the term "user style" in Blink and Blink API

public/web/WebView.h

Index: public/web/WebView.h
diff --git a/public/web/WebView.h b/public/web/WebView.h
index 9145e03ce557939156181f47027c0309d59a8700..4f8d4b5a17afaed933cd270e38d42589180147df 100644
--- a/public/web/WebView.h
+++ b/public/web/WebView.h
@@ -74,12 +74,19 @@ public:
     BLINK_EXPORT static const float minPageScaleFactor;
     BLINK_EXPORT static const float maxPageScaleFactor;
 
+    enum StyleInjectionTarget {
+        InjectStyleInAllFrames,
+        InjectStyleInTopFrameOnly
+    };
+
+    // FIXME: Remove this enum once callers have switched to StyleInjectionTarget
     // Controls which frames user content is injected into.
     enum UserContentInjectIn {
         UserContentInjectInAllFrames,
         UserContentInjectInTopFrameOnly
     };
 
+    // FIXME: Remove this enum once callers stop referring to it.
     // Controls which documents user styles are injected into.
     enum UserStyleInjectionTime {
         UserStyleInjectInExistingDocuments,
@@ -478,7 +485,11 @@ public:
                                     unsigned inactiveBackgroundColor,
                                     unsigned inactiveForegroundColor) = 0;
 
-    // User scripts --------------------------------------------------------
+    // Injected style ------------------------------------------------------
+    BLINK_EXPORT static void injectStyleSheet(const WebString& sourceCode, const WebVector<WebString>& patterns, StyleInjectionTarget);
+    BLINK_EXPORT static void removeInjectedStyleSheets();
+
+    // FIXME: Remove these two methods once their callers have switched to the new names above.
     BLINK_EXPORT static void addUserStyleSheet(const WebString& sourceCode,
                                                 const WebVector<WebString>& patterns,
                                                 UserContentInjectIn injectIn,