Remove lots of old blur plumbing.

components/web_contents_delegate_android/web_contents_delegate_android.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "components/web_contents_delegate_android/web_contents_delegate_android.h"
 
 #include <android/keycodes.h>
 
 #include "base/android/jni_android.h"
 #include "base/android/jni_array.h"
@@ skipping 151 matching lines @@
 }
 
 void WebContentsDelegateAndroid::ActivateContents(WebContents* contents) {
   JNIEnv* env = AttachCurrentThread();
   ScopedJavaLocalRef<jobject> obj = GetJavaDelegate(env);
   if (obj.is_null())
     return;
   Java_WebContentsDelegateAndroid_activateContents(env, obj.obj());
 }
 
-void WebContentsDelegateAndroid::DeactivateContents(WebContents* contents) {
-  // On desktop the current window is deactivated here, bringing the next window
-  // to focus. Not implemented on Android.
-}
-
 void WebContentsDelegateAndroid::LoadingStateChanged(WebContents* source,
     bool to_different_document) {
   JNIEnv* env = AttachCurrentThread();
   ScopedJavaLocalRef<jobject> obj = GetJavaDelegate(env);
   if (obj.is_null())
     return;
   bool has_stopped = source == NULL || !source->IsLoading();
 
   if (has_stopped)
     Java_WebContentsDelegateAndroid_onLoadStopped(env, obj.obj());
@@ skipping 251 matching lines @@
 // Native JNI methods
 // ----------------------------------------------------------------------------
 
 // Register native methods
 
 bool RegisterWebContentsDelegateAndroid(JNIEnv* env) {
   return RegisterNativesImpl(env);
 }
 
 }  // namespace web_contents_delegate_android