Restore only modified texture state during virtual context switches

ui/gl/gl_state_restorer.h

Index: ui/gl/gl_state_restorer.h
diff --git a/ui/gl/gl_state_restorer.h b/ui/gl/gl_state_restorer.h
index 6d8791f3c16ac00c7e54ced91d7c1235cdf35f18..05f4ce82b0be8907cc3bdb172230436eac6701b4 100644
--- a/ui/gl/gl_state_restorer.h
+++ b/ui/gl/gl_state_restorer.h
@@ -10,6 +10,8 @@
 
 namespace gfx {
 
+class DirtyTextureState;
+
 // An interface for Restoring GL State.
 // This will expand over time to provide an more optimizable implementation.
 class GL_EXPORT GLStateRestorer {
@@ -18,7 +20,7 @@ class GL_EXPORT GLStateRestorer {
   virtual ~GLStateRestorer();
 
   virtual bool IsInitialized() = 0;
-  virtual void RestoreState() = 0;
+  virtual void RestoreState(const DirtyTextureState* dirty_texture_state) = 0;
   virtual void RestoreAllTextureUnitBindings() = 0;
   virtual void RestoreFramebufferBindings() = 0;