Messages needed for webview compositor communication.

content/common/browser_plugin_messages.h

Index: content/common/browser_plugin_messages.h
diff --git a/content/common/browser_plugin_messages.h b/content/common/browser_plugin_messages.h
index 432c1a150d741d1d37b44527be92128c27bd9f8e..9644d12b3be16e40a8e9cd07de0eb237837d4ee7 100644
--- a/content/common/browser_plugin_messages.h
+++ b/content/common/browser_plugin_messages.h
@@ -68,6 +68,13 @@ IPC_STRUCT_BEGIN(BrowserPluginHostMsg_ResizeGuest_Params)
   IPC_STRUCT_MEMBER(bool, resize_pending)
   // Indicates the scale factor of the embedder WebView.
   IPC_STRUCT_MEMBER(float, scale_factor)
+  // Hardware Accelerated Surface Params.
+  IPC_STRUCT_MEMBER(int, gpu_process_id)
+  IPC_STRUCT_MEMBER(uint32, client_id)
+  IPC_STRUCT_MEMBER(uint32, context_id)
+  IPC_STRUCT_MEMBER(uint32, texture_id_0)
+  IPC_STRUCT_MEMBER(uint32, texture_id_1)
+  IPC_STRUCT_MEMBER(uint32, sync_point)
 IPC_STRUCT_END()
 
 IPC_STRUCT_BEGIN(BrowserPluginMsg_LoadCommit_Params)
@@ -189,6 +196,12 @@ IPC_MESSAGE_ROUTED3(BrowserPluginHostMsg_NavigateGuest,
                     std::string /* src */,
                     BrowserPluginHostMsg_ResizeGuest_Params /* resize_params */)
 
+// Acknowledge that we presented a HW buffer.
+IPC_MESSAGE_ROUTED3(BrowserPluginHostMsg_BuffersSwappedACK,
+                    int /* route_id */,
+                    int /* gpu_host_id */,
+                    uint32 /* sync_point */)
+
 // When a BrowserPlugin has been removed from the embedder's DOM, it informs
 // the browser process to cleanup the guest.
 IPC_MESSAGE_ROUTED1(BrowserPluginHostMsg_PluginDestroyed,
@@ -287,3 +300,17 @@ IPC_MESSAGE_CONTROL3(BrowserPluginMsg_UpdateRect,
                      int /* instance_id */,
                      int /* message_id */,
                      BrowserPluginMsg_UpdateRect_Params)
+
+// f accelerated buffers were swapped in the guest, forward this

[rjkroege, 2012/11/08 15:08:50]

If? And more explanation for what these messages do?

[alexst (slow to review), 2012/11/08 18:12:17]

it was actually ctrl + f to find something. Updated with better comments.

+// information to the embedder.
+IPC_MESSAGE_CONTROL4(BrowserPluginMsg_BuffersSwapped,
+                     int /* instance_id */,
+                     uint64 /* surface_handle */,
+                     int /* route_id */,
+                     int /* gpu_host_id */)
+
+// HW accelerated surface was resized in the guest, forward this
+// information to the embedder.
+IPC_MESSAGE_CONTROL2(BrowserPluginMsg_SurfaceResize,
+                     int /* instance_id */,
+                     gfx::Size /* size */)