Implementing WebDatabaseObserver in the renderer process....

chrome/common/render_messages_internal.h

 // Copyright (c) 2009 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.
 
 // This header is meant to be included in multiple passes, hence no traditional
 // header guard.
 // See ipc_message_macros.h for explanation of the macros and passes.
 
 #include <map>
 #include <string>
@@ skipping 742 matching lines @@
   // Returns the attributes of a file
   IPC_MESSAGE_CONTROL2(ViewMsg_DatabaseGetFileAttributesResponse,
                        int32 /* the ID of the message we're replying to */,
                        int32 /* the attributes for the given DB file */)
 
   // Returns the size of a file
   IPC_MESSAGE_CONTROL2(ViewMsg_DatabaseGetFileSizeResponse,
                        int32 /* the ID of the message we're replying to */,
                        int64 /* the size of the given DB file */)
 
+  // Notifies the child process of the new database size
+  IPC_MESSAGE_CONTROL4(ViewMsg_DatabaseUpdateSize,
+                       string16 /* the origin */,
+                       string16 /* the database name */,
+                       int64 /* the new database size */,
+                       int64 /* space available to origin */)
+
   // Storage events are broadcast to renderer processes.
   IPC_MESSAGE_CONTROL5(ViewMsg_DOMStorageEvent,
                        string16 /* key */,
                        NullableString16 /* old_value */,
                        NullableString16 /* new_value */,
                        string16 /* origin */,
                        DOMStorageType /* dom_storage_type */)
 
 #if defined(IPC_MESSAGE_LOG_ENABLED)
   // Tell the renderer process to begin or end IPC message logging.
@@ skipping 1110 matching lines @@
   // Asks the browser process to return the attributes of a DB file
   IPC_MESSAGE_CONTROL2(ViewHostMsg_DatabaseGetFileAttributes,
                        FilePath /* the name of the file */,
                        int32 /* a unique message ID */)
 
   // Asks the browser process to return the size of a DB file
   IPC_MESSAGE_CONTROL2(ViewHostMsg_DatabaseGetFileSize,
                        FilePath /* the name of the file */,
                        int32 /* a unique message ID */)
 
+  // Notifies the browser process that a new database has been opened
+  IPC_MESSAGE_CONTROL4(ViewHostMsg_DatabaseOpened,
+                       string16 /* origin identifier */,
+                       string16 /* database name */,
+                       string16 /* database description */,
+                       int64 /* estimated size */)
+
+  // Notifies the browser process that a database might have been modified
+  IPC_MESSAGE_CONTROL2(ViewHostMsg_DatabaseModified,
+                       string16 /* origin identifier */,
+                       string16 /* database name */)
+
+  // Notifies the browser process that a database is about to close
+  IPC_MESSAGE_CONTROL2(ViewHostMsg_DatabaseClosed,
+                       string16 /* origin identifier */,
+                       string16 /* database name */)
+
   //---------------------------------------------------------------------------
   // Socket Stream messages:
   // These are messages from the SocketStreamHandle to the browser.
 
   // Open new Socket Stream for the |socket_url| identified by |socket_id|
   // in the renderer process.
   // The browser starts connecting asynchronously.
   // Once Socket Stream connection is established, the browser will send
   // ViewMsg_SocketStream_Connected back.
   IPC_MESSAGE_CONTROL2(ViewHostMsg_SocketStream_Connect,
@@ skipping 27 matching lines @@
 
   // Asks the browser process to generate a keypair for grabbing a client
   // certificate from a CA (<keygen> tag), and returns the signed public
   // key and challenge string.
   IPC_SYNC_MESSAGE_CONTROL3_1(ViewHostMsg_Keygen,
                               uint32 /* key size index */,
                               std::string /* challenge string */,
                               GURL /* URL of requestor */,
                               std::string /* signed public key and challenge */)
 IPC_END_MESSAGES(ViewHost)