Disable partial swaps for webview guest renderer until we can figure out how to do that properly.

ui/gfx/native_widget_types.h

 // Copyright (c) 2012 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.
 
 #ifndef UI_GFX_NATIVE_WIDGET_TYPES_H_
 #define UI_GFX_NATIVE_WIDGET_TYPES_H_
 
 #include "build/build_config.h"
 
 #if defined(OS_ANDROID)
@@ skipping 253 matching lines @@
   // returned to a bool. For now we use a type large enough to hold a
   // pointer on 64-bit architectures in case we need this capability.
   typedef uint64 PluginWindowHandle;
   const PluginWindowHandle kNullPluginWindow = 0;
 #endif
 
 enum SurfaceType {
   EMPTY,
   NATIVE_DIRECT,
   NATIVE_TRANSPORT,
-  TEXTURE_TRANSPORT
+  TEXTURE_TRANSPORT,
+  TEXTURE_TRANSPORT_NO_PARTIAL_SWAP

[piman, 2013/03/05 20:32:37]

I'm really uneasy with passing feature flags through this type enum. How about
disabling partial swaps in the guest, by changing the LayerTreeSettings in
RenderWidgetCompositor::Create ?

[alexst (slow to review), 2013/03/05 21:09:28]

I'll need to go do some digging to find a good way to do that. I've written via
SurfaceType because it's one place I know something is a guest.

Currently a renderer itself doesn't know it's a webview, so I'll need to plumb
that information through, somehow.

I'll need a flag along the lines of do_partial_swap_but_render_everything_anyway
if we want to forward the damage rect to the embedder.

 };
 
 struct GLSurfaceHandle {
   GLSurfaceHandle()
       : handle(kNullPluginWindow),
         transport_type(EMPTY),
         parent_gpu_process_id(0),
         parent_client_id(0) {
   }
   GLSurfaceHandle(PluginWindowHandle handle_, SurfaceType transport_)
       : handle(handle_),
         transport_type(transport_),
         parent_gpu_process_id(0),
         parent_client_id(0) {
     DCHECK(!is_null() || handle == kNullPluginWindow);
     DCHECK(transport_type != TEXTURE_TRANSPORT ||
+           transport_type != TEXTURE_TRANSPORT_NO_PARTIAL_SWAP ||
            handle == kNullPluginWindow);
   }
   bool is_null() const { return transport_type == EMPTY; }
   bool is_transport() const {
     return transport_type == NATIVE_TRANSPORT ||
-           transport_type == TEXTURE_TRANSPORT;
+           transport_type == TEXTURE_TRANSPORT ||
+           transport_type == TEXTURE_TRANSPORT_NO_PARTIAL_SWAP;
   }
   PluginWindowHandle handle;
   SurfaceType transport_type;
   int parent_gpu_process_id;
   uint32 parent_client_id;
 };
 
 // AcceleratedWidget provides a surface to compositors to paint pixels.
 #if defined(OS_WIN)
 typedef HWND AcceleratedWidget;
@@ skipping 10 matching lines @@
 #elif defined(OS_ANDROID)
 typedef ANativeWindow* AcceleratedWidget;
 const AcceleratedWidget kNullAcceleratedWidget = 0;
 #else
 #error unknown platform
 #endif
 
 }  // namespace gfx
 
 #endif  // UI_GFX_NATIVE_WIDGET_TYPES_H_