gpu: Add support for GLX_EXT_texture_from_pixmap extension.

content/common/gpu/gpu_channel_manager.cc

Index: content/common/gpu/gpu_channel_manager.cc
diff --git a/content/common/gpu/gpu_channel_manager.cc b/content/common/gpu/gpu_channel_manager.cc
index 1da6aecf2f3c82608fc57654592fc22c5d557c85..6c863fdcfe67cc036ad2eb5d7a372aa6687126a7 100644
--- a/content/common/gpu/gpu_channel_manager.cc
+++ b/content/common/gpu/gpu_channel_manager.cc
@@ -95,6 +95,8 @@ bool GpuChannelManager::OnMessageReceived(const IPC::Message& msg) {
     IPC_MESSAGE_HANDLER(GpuMsg_CloseChannel, OnCloseChannel)
     IPC_MESSAGE_HANDLER(GpuMsg_CreateViewCommandBuffer,
                         OnCreateViewCommandBuffer)
+    IPC_MESSAGE_HANDLER(GpuMsg_CreateImage, OnCreateImage)
+    IPC_MESSAGE_HANDLER(GpuMsg_DeleteImage, OnDeleteImage)
     IPC_MESSAGE_UNHANDLED(handled = false)
   IPC_END_MESSAGE_MAP_EX()
   return handled;
@@ -169,6 +171,32 @@ void GpuChannelManager::OnCreateViewCommandBuffer(
   Send(new GpuHostMsg_CommandBufferCreated(route_id));
 }
 
+void GpuChannelManager::OnCreateImage(
+    gfx::PluginWindowHandle window,
+    int32 client_id,
+    int32 image_id) {
+  DCHECK(image_id);
+  gfx::Size size;
+
+  GpuChannelMap::const_iterator iter = gpu_channels_.find(client_id);
+  if (iter != gpu_channels_.end()) {
+    iter->second->CreateImage(window, image_id, &size);
+  }
+
+  Send(new GpuHostMsg_ImageCreated(size));
+}
+
+void GpuChannelManager::OnDeleteImage(
+    int32 client_id,
+    int32 image_id) {
+  DCHECK(image_id);
+
+  GpuChannelMap::const_iterator iter = gpu_channels_.find(client_id);
+  if (iter != gpu_channels_.end()) {
+    iter->second->DeleteImage(image_id);
+  }
+}
+
 void GpuChannelManager::LoseAllContexts() {
   MessageLoop::current()->PostTask(
       FROM_HERE,