Android: Remove ContentViewCore::GetLayer() from public interface

content/public/browser/android/content_view_core.h

Index: content/public/browser/android/content_view_core.h
diff --git a/content/public/browser/android/content_view_core.h b/content/public/browser/android/content_view_core.h
index 24f9572853662750f9b1715a6211dafd33af74bd..588809574be90475e4629caab178350020e9db22 100644
--- a/content/public/browser/android/content_view_core.h
+++ b/content/public/browser/android/content_view_core.h
@@ -31,14 +31,12 @@ namespace content {
 
 class WebContents;
 
-// Native side of the ContentViewCore.java, which is the primary way of
-// communicating with the native Chromium code on Android.  This is a
-// public interface used by native code outside of the content module.
+// DEPRECATED. Do not add methods.
+// Refer to the public WebContents interface or elsewhere instead.
 class CONTENT_EXPORT ContentViewCore {
  public:
   // Returns the existing ContentViewCore for |web_contents|, or nullptr.
   static ContentViewCore* FromWebContents(WebContents* web_contents);
-  static ContentViewCore* GetNativeContentViewCore(JNIEnv* env, jobject obj);
 
   virtual WebContents* GetWebContents() const = 0;
 
@@ -51,7 +49,6 @@ class CONTENT_EXPORT ContentViewCore {
   virtual ui::WindowAndroid* GetWindowAndroid() const = 0;
   virtual const base::android::JavaRef<jobject>& GetViewAndroidDelegate()
       const = 0;
-  virtual cc::Layer* GetLayer() const = 0;
 
  protected:
  ~ContentViewCore() {}