The first step for enabling off-the-spot IME on Pepper on ChromeOS/Linux.

content/common/view_messages.h

 // Copyright (c) 2011 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.
 
 // IPC messages for page rendering.
 // Multiply-included message file, hence no include guard.
 
 #include "base/process.h"
 #include "base/shared_memory.h"
 #include "content/common/common_param_traits.h"
@@ skipping 1743 matching lines @@
 // fill in and pass back to the browser.
 IPC_SYNC_MESSAGE_CONTROL1_1(ViewHostMsg_AllocateSharedMemoryBuffer,
                            uint32 /* buffer size */,
                            base::SharedMemoryHandle /* browser handle */)
 
 // Notify the browser that this render process can or can't be suddenly
 // terminated.
 IPC_MESSAGE_CONTROL1(ViewHostMsg_SuddenTerminationChanged,
                      bool /* enabled */)
 
+// Informs the browser that a plugin has gained or lost focus.

[kochi, 2011/05/25 06:19:44]

Please be specific that this is "a ppapi plugin".

[kinaba, 2011/05/25 22:23:53]

(Removed from the patch set 2.)

+IPC_MESSAGE_ROUTED1(ViewHostMsg_PpapiPluginFocusChanged,
+                    bool /* focused */)
+
 #if defined(OS_MACOSX)
 // On OSX, we cannot allocated shared memory from within the sandbox, so
 // this call exists for the renderer to ask the browser to allocate memory
 // on its behalf. We return a file descriptor to the POSIX shared memory.
 // If the |cache_in_browser| flag is |true|, then a copy of the shmem is kept
 // by the browser, and it is the caller's repsonsibility to send a
 // ViewHostMsg_FreeTransportDIB message in order to release the cached shmem.
 // In all cases, the caller is responsible for deleting the resulting
 // TransportDIB.
 IPC_SYNC_MESSAGE_CONTROL2_1(ViewHostMsg_AllocTransportDIB,
@@ skipping 164 matching lines @@
 
 // Stores new inspector setting in the profile.
 // TODO(jam): this should be in the chrome module
 IPC_MESSAGE_ROUTED2(ViewHostMsg_UpdateInspectorSetting,
                     std::string,  /* key */
                     std::string /* value */)
 
 // Send back a string to be recorded by UserMetrics.
 IPC_MESSAGE_CONTROL1(ViewHostMsg_UserMetricsRecordAction,
                      std::string /* action */)