Plumb damage rect to browser compositor.

content/common/gpu/image_transport_surface_linux.cc

 // 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.
 
 #if defined(ENABLE_GPU)
 
 #include "content/common/gpu/image_transport_surface.h"
 
 // This conflicts with the defines in Xlib.h and must come first.
 #include "content/common/gpu/gpu_messages.h"
@@ skipping 495 matching lines @@
   glXWaitX();
 }
 
 void GLXImageTransportSurface::OnResize(gfx::Size size) {
   TRACE_EVENT0("gpu", "GLXImageTransportSurface::OnResize");
   size_ = size;
 
   Display* dpy = static_cast<Display*>(GetDisplay());
   XResizeWindow(dpy, window_, size_.width(), size_.height());
   glXWaitX();
+  // Seems necessary to perform a swap after a resize
+  // in order to resize the front and back buffers (Intel driver bug).
+  // This doesn't always happen with scissoring enabled, so do it now.
+  if (gfx::g_GLX_MESA_copy_sub_buffer)
+    gfx::NativeViewGLSurfaceGLX::SwapBuffers();
   needs_resize_ = true;
 }
 
 bool GLXImageTransportSurface::SwapBuffers() {
   gfx::NativeViewGLSurfaceGLX::SwapBuffers();
   glFlush();
 
   if (needs_resize_) {
     GpuHostMsg_AcceleratedSurfaceNew_Params params;
     params.width = size_.width();
@@ skipping 256 matching lines @@
                                                  command_buffer_id,
                                                  surface.get());
 #endif
   if (surface->Initialize())
     return surface;
   else
     return NULL;
 }
 
 #endif  // defined(USE_GPU)