cc: Implement shared worker contexts. (v1)

blimp/client/compositor/blimp_context_provider.h

Index: blimp/client/compositor/blimp_context_provider.h
diff --git a/blimp/client/compositor/blimp_context_provider.h b/blimp/client/compositor/blimp_context_provider.h
index 922ae4db7320dd049601c7170fa5ce9d3ae47820..0a8a04e6ee5071eb77e29ba5a11f40813c063e7c 100644
--- a/blimp/client/compositor/blimp_context_provider.h
+++ b/blimp/client/compositor/blimp_context_provider.h
@@ -34,12 +34,13 @@ class BlimpContextProvider : public cc::ContextProvider {
   base::Lock* GetLock() override;
   void VerifyContexts() override;
   void DeleteCachedResources() override;
-  bool DestroyedOnMainThread() override;
+  bool HasBeenLostOnMainThread() override;
   void SetLostContextCallback(
       const LostContextCallback& lost_context_callback) override;
   void SetMemoryPolicyChangedCallback(
       const MemoryPolicyChangedCallback& memory_policy_changed_callback)
       override;
+  bool HasBeenDestroyed() override;
 
  protected:
   explicit BlimpContextProvider(gfx::AcceleratedWidget widget);
@@ -59,8 +60,8 @@ class BlimpContextProvider : public cc::ContextProvider {
 
   LostContextCallback lost_context_callback_;
 
-  base::Lock destroyed_lock_;
-  bool destroyed_;
+  base::Lock lost_lock_;
+  bool lost_;
 
   DISALLOW_COPY_AND_ASSIGN(BlimpContextProvider);
 };