Pull cacheinvalidations code directory into chromium repo.

third_party/cacheinvalidation/src/java/com/google/ipc/invalidation/ticl/android2/channel/AndroidChannelConstants.java

Index: third_party/cacheinvalidation/src/java/com/google/ipc/invalidation/ticl/android2/channel/AndroidChannelConstants.java
diff --git a/third_party/cacheinvalidation/src/java/com/google/ipc/invalidation/ticl/android2/channel/AndroidChannelConstants.java b/third_party/cacheinvalidation/src/java/com/google/ipc/invalidation/ticl/android2/channel/AndroidChannelConstants.java
new file mode 100644
index 0000000000000000000000000000000000000000..bc0f4c28732330225659dff273ed001733218660
--- /dev/null
+++ b/third_party/cacheinvalidation/src/java/com/google/ipc/invalidation/ticl/android2/channel/AndroidChannelConstants.java
@@ -0,0 +1,128 @@
+/*
+ * Copyright 2011 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.ipc.invalidation.ticl.android2.channel;
+
+import com.google.ipc.invalidation.ticl.proto.AndroidChannel.MajorVersion;
+import com.google.ipc.invalidation.ticl.proto.ClientProtocol.Version;
+
+/**
+ * Constants used by the network channel.
+ *
+ */
+public final class AndroidChannelConstants {
+
+  /** Constants used in Intents sent to retrieve auth tokens from the application. */
+  public static class AuthTokenConstants {
+    /**
+     * Action requesting that an auth token to send a message be provided. This is the action
+     * used in the intent to the application.
+     */
+    public static final String ACTION_REQUEST_AUTH_TOKEN =
+        "com.google.ipc.invalidation.AUTH_TOKEN_REQUEST";
+
+    /** Extra in an auth token request response providing the pending intent. */
+    public static final String EXTRA_PENDING_INTENT =
+        "com.google.ipc.invalidation.AUTH_TOKEN_PENDING_INTENT";
+
+    /**
+     * Extra in an auth token request message indicating that the token provided as the value
+     * was invalid when last used. This may be set on the intent to the application.
+     */
+    public static final String EXTRA_INVALIDATE_AUTH_TOKEN =
+        "com.google.ipc.invalidaton.AUTH_TOKEN_INVALIDATE";
+
+    /** Extra in the intent from the application that provides the auth token string. */
+    public static final String EXTRA_AUTH_TOKEN = "com.google.ipc.invalidation.AUTH_TOKEN";
+
+    /**
+     * Extra in the intent from the application that provides the so-called "auth token type". If
+     * the auth token is a GoogleLogin token, then this value must name the Gaia service (e.g.,
+     * "chromiumsync") for which the token was generated. If the auth token is a Gaia OAuth2 token,
+     * then this value must have the form "oauth2:{scope}", where {scope} is a Google API
+     * authentication scope such as "https://www.googleapis.com/auth/chromesync".
+     */
+    public static final String EXTRA_AUTH_TOKEN_TYPE =
+        "com.google.ipc.invalidation.AUTH_TOKEN_TYPE";
+
+    /**
+     * Extra in the intent from the application that provides the message to send. We store this
+     * ourselves in the intent inside the pending intent that we give to the application.
+     */
+    static final String EXTRA_STORED_MESSAGE = "com.google.ipc.invalidation.AUTH_TOKEN_MSG";
+
+    /**
+     * Extra in the intent from the application that indicates whether the intent is for a retry
+     * after a failed authentication. If we find that an auth token no longer works, we will tell
+     * the application to invalidate it, retrieve a new one, and send us back the message and the
+     * new token, but we do not want to go into an infinite loop if authentication never succeeds.
+     */
+    static final String EXTRA_IS_RETRY = "com.google.ipc.invalidation.AUTH_TOKEN_IS_RETRY";
+  }
+
+  /** Constants used in HTTP requests to the data center. */
+  public static class HttpConstants {
+    /** The URL of the invalidation channel service */
+    public static final String CHANNEL_URL = "https://clients4.google.com/";
+
+    /** The MIME content type to use for requests that contain binary protobuf */
+    public static final String PROTO_CONTENT_TYPE = "application/x-protobuffer";
+
+    /** The relative URL to use to send inbound client requests to the Android frontend */
+    public static final String REQUEST_URL = "/invalidation/android/request/";
+
+    /**
+     * The name of the query parameter that contains the service name that should be used to
+     * validate the authentication token provided with the request.
+     */
+    public static final String SERVICE_PARAMETER = "service";
+
+    /**
+     * The name of the header that contains the echoed token. This token is included in all C2DM
+     * messages to the client and is echoed back under this header on all client HTTP requests.
+     */
+    public static final String ECHO_HEADER = "echo-token";
+  }
+
+  /** Constants used in C2DM messages. */
+   public static class C2dmConstants {
+    /**
+     * Name of C2DM parameter containing message content.  If not set, data is retrieved via
+     * the mailbox frontend
+     */
+    public static final String CONTENT_PARAM = "content";
+
+    /** Name of the C2DM parameter containing an opaque token to be echoed on HTTP requests. */
+    public static final String ECHO_PARAM = "echo-token";
+  }
+
+  /** The channel version expected by this channel implementation. */
+  public static final Version CHANNEL_VERSION = Version.create(MajorVersion.INITIAL, 0);
+
+  /**
+   * An extra set on an intent to the AndroidMessageSenderService to inform it that a GCM
+   * registration id change has occurred. This is sent by the AndroidMessageReceiverService
+   * to trigger the sender service to send any buffered messages when a GCM registration id first
+   * becomes available.
+   * <p>
+   * The value associated with this extra is ignored.
+   */
+  static final String MESSAGE_SENDER_SVC_GCM_REGID_CHANGE =
+      "com.google.ipc.invalidation.channel.sender.gcm_regid_change";
+
+  private AndroidChannelConstants() {
+    // Disallow instantiation.
+  }
+}