linux: OOP windowed plugins

There are still a few issues, but that's a start.
- only windowed plugins
- we can't currently create the gtksocket in background tabs, because their gtkwidgets are not yet in the hierarchy, so they can't be realized (that's what gives the XID).
- the plugin process talks to the browser process through the renderer process to create/destroy the gtksockets, because the plugin doesn't know which renderer it's talking to. We need a bit more plumbing to be able to have direct IPC.
- some code is duplicated between chrome and test_shell. We should probably refactor it, but I'm not sure where the common part should live.

Patch from Antoine Labour <piman@google.com>, with some touchups by me.

Review URL: http://codereview.chromium.org/146078

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@20041 0039d316-1c4b-4281-b951-d872f2087c98

2 files changed, 28 insertions, 1 deletions

diff --git a/chrome/common/plugin_messages_internal.h b/chrome/common/plugin_messages_internal.h
index 9eed897..dc853c2 100644
--- a/chrome/common/plugin_messages_internal.h
+++ b/chrome/common/plugin_messages_internal.h
@@ -2,6 +2,7 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+#include "base/gfx/native_widget_types.h"
 #include "base/shared_memory.h"
 #include "build/build_config.h"
 #include "chrome/common/ipc_message_macros.h"
@@ -97,6 +98,16 @@ IPC_BEGIN_MESSAGES(PluginProcessHost)
                       HWND /* caller window */)
 #endif
 
+#if defined(OS_LINUX)
+  // On Linux, the mapping between NativeViewId and X window ids
+  // is known only to the browser.  This message lets the plugin process
+  // ask about a NativeViewId that was provided by the renderer.
+  // It will get 0 back if it's a bogus input.
+  IPC_SYNC_MESSAGE_CONTROL1_1(PluginProcessHostMsg_MapNativeViewId,
+                             gfx::NativeViewId /* input: native view id */,
+                             gfx::PluginWindowHandle /* output: X window id */)
+#endif
+
 IPC_END_MESSAGES(PluginProcessHost)
 
 
@@ -219,7 +230,16 @@ IPC_BEGIN_MESSAGES(PluginHost)
   // The window parameter is a handle to the window if the plugin is a windowed
   // plugin. It is NULL for windowless plugins.
   IPC_SYNC_MESSAGE_ROUTED1_0(PluginHostMsg_SetWindow,
-                             gfx::NativeViewId /* window */)
+                             gfx::PluginWindowHandle /* window */)
+
+#if defined(OS_LINUX)
+  // Asks the renderer to create a plugin container (GtkSocket).
+  IPC_SYNC_MESSAGE_ROUTED0_1(PluginHostMsg_CreatePluginContainer,
+                             gfx::PluginWindowHandle /* container */)
+  // Asks the renderer to destroy a plugin container (GtkSocket).
+  IPC_SYNC_MESSAGE_ROUTED1_0(PluginHostMsg_DestroyPluginContainer,
+                             gfx::PluginWindowHandle /* container */)
+#endif
 
 #if defined(OS_WIN)
   // The modal_loop_pump_messages_event parameter is an event handle which is
diff --git a/chrome/common/render_messages_internal.h b/chrome/common/render_messages_internal.h
index d04c3a5..d6ff653 100644
--- a/chrome/common/render_messages_internal.h
+++ b/chrome/common/render_messages_internal.h
@@ -929,6 +929,13 @@ IPC_BEGIN_MESSAGES(ViewHost)
                               IPC::ChannelHandle /* handle to channel */,
                               FilePath /* plugin_path */)
 
+#if defined(OS_LINUX)
+  IPC_SYNC_MESSAGE_ROUTED0_1(ViewHostMsg_CreatePluginContainer,
+                             gfx::PluginWindowHandle /* container */)
+  IPC_SYNC_MESSAGE_ROUTED1_0(ViewHostMsg_DestroyPluginContainer,
+                             gfx::PluginWindowHandle /* container */)
+#endif
+
   // Clipboard IPC messages
 
   // This message is used when the object list does not contain a bitmap.