Index: content/public/android/java/src/org/chromium/content/browser/BindingManager.java |
diff --git a/content/public/android/java/src/org/chromium/content/browser/BindingManager.java b/content/public/android/java/src/org/chromium/content/browser/BindingManager.java |
deleted file mode 100644 |
index 01e0bfabb1506dcb6a7a631dc961a9477339a09f..0000000000000000000000000000000000000000 |
--- a/content/public/android/java/src/org/chromium/content/browser/BindingManager.java |
+++ /dev/null |
@@ -1,76 +0,0 @@ |
-// Copyright 2013 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. |
- |
-package org.chromium.content.browser; |
- |
-/** |
- * Manages oom bindings used to bound child services. "Oom binding" is a binding that raises the |
- * process oom priority so that it shouldn't be killed by the OS out-of-memory killer under |
- * normal conditions (it can still be killed under drastic memory pressure). ChildProcessConnections |
- * have two oom bindings: initial binding and strong binding. |
- * |
- * BindingManager receives calls that signal visibility of each service (setInForeground()) and the |
- * entire embedding application (onSentToBackground(), onBroughtToForeground()) and manipulates |
- * child process bindings accordingly. |
- * |
- * In particular, BindingManager is responsible for: |
- * - removing the initial binding of a service when its visibility is determined for the first time |
- * - addition and (possibly delayed) removal of a strong binding when service visibility changes |
- * - dropping the current oom bindings when a new connection is started on a low-memory device |
- * - keeping a strong binding on the foreground service while the entire application is in |
- * background |
- * |
- * Thread-safety: most of the methods will be called only on the main thread, exceptions are |
- * explicitly noted. |
- */ |
-public interface BindingManager { |
- /** |
- * Registers a freshly started child process. On low-memory devices this will also drop the |
- * oom bindings of the last process that was oom-bound. We can do that, because every time a |
- * connection is created on the low-end, it is used in foreground (no prerendering, no |
- * loading of tabs opened in background). This can be called on any thread. |
- * @param pid handle of the service process |
- */ |
- void addNewConnection(int pid, ChildProcessConnection connection); |
- |
- /** |
- * Called when the service visibility changes or is determined for the first time. |
- * @param pid handle of the service process |
- * @param inForeground true iff the service is visibile to the user |
- */ |
- void setInForeground(int pid, boolean inForeground); |
- |
- /** |
- * Called when the embedding application is sent to background. We want to maintain a strong |
- * binding on the most recently used renderer while the embedder is in background, to indicate |
- * the relative importance of the renderer to system oom killer. |
- * |
- * The embedder needs to ensure that: |
- * - every onBroughtToForeground() is followed by onSentToBackground() |
- * - pairs of consecutive onBroughtToForeground() / onSentToBackground() calls do not overlap |
- */ |
- void onSentToBackground(); |
- |
- /** |
- * Called when the embedding application is brought to foreground. This will drop the strong |
- * binding kept on the main renderer during the background period, so the embedder should make |
- * sure that this is called after the regular strong binding is attached for the foreground |
- * session. |
- */ |
- void onBroughtToForeground(); |
- |
- /** |
- * @return True iff the given service process is protected from the out-of-memory killing, or it |
- * was protected when it died unexpectedly. This can be used to decide if a disconnection of a |
- * renderer was a crash or a probable out-of-memory kill. This can be called on any thread. |
- */ |
- boolean isOomProtected(int pid); |
- |
- /** |
- * Should be called when the connection to the child process goes away (either after a clean |
- * exit or an unexpected crash). At this point we let go of the reference to the |
- * ChildProcessConnection. This can be called on any thread. |
- */ |
- void clearConnection(int pid); |
-} |