Revert of Updating calls to offscreen buffers to use a size of (0,0) when they do not require

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 3e056e5e7cb7b5fc436dba37c509e2207fe1cc34..7bbfea1de7d38ed0cdf50d55ef01dfd37829edbc 100644
--- a/content/common/gpu/gpu_channel_manager.cc
+++ b/content/common/gpu/gpu_channel_manager.cc
@@ -297,7 +297,7 @@
 gfx::GLSurface* GpuChannelManager::GetDefaultOffscreenSurface() {
   if (!default_offscreen_surface_.get()) {
     default_offscreen_surface_ =
-        gfx::GLSurface::CreateOffscreenGLSurface(gfx::Size());
+        gfx::GLSurface::CreateOffscreenGLSurface(gfx::Size(1, 1));
   }
   return default_offscreen_surface_.get();
 }