Add ContextProvider::InvalidateGrContext to reset GL state in GrContext

cc/output/context_provider.h

Index: cc/output/context_provider.h
diff --git a/cc/output/context_provider.h b/cc/output/context_provider.h
index 71d06bd7591d22f180f7a395b5be412d733b03bb..39064225f9df74c3feacbce4a628097030071568 100644
--- a/cc/output/context_provider.h
+++ b/cc/output/context_provider.h
@@ -9,8 +9,7 @@
 #include "base/memory/ref_counted.h"
 #include "cc/base/cc_export.h"
 #include "gpu/command_buffer/common/capabilities.h"
-
-class GrContext;
+#include "third_party/skia/include/gpu/GrContext.h"

[piman, 2015/05/07 01:07:08]

nit: you shouldn't need this

 
 namespace base {
 class Lock;
@@ -44,6 +43,9 @@ class ContextProvider : public base::RefCountedThreadSafe<ContextProvider> {
     CC_EXPORT Capabilities();
   };
 
+  // Invalidates the cached OpenGL state in GrContext.
+  virtual void InvalidateGrContext(uint32_t state) = 0;
+
   // Sets up a lock so this context can be used from multiple threads.
   virtual void SetupLock() = 0;