blimp: Set up the CompositorDependencies for blimp in Chrome.

blimp/client/core/blimp_client_context_impl.h

Index: blimp/client/core/blimp_client_context_impl.h
diff --git a/blimp/client/core/blimp_client_context_impl.h b/blimp/client/core/blimp_client_context_impl.h
index 8302d26ca19bdb5617f7f005a4755092e5c6a8ad..04059e44d556a539f3c34fafde91b2c4c5d9e232 100644
--- a/blimp/client/core/blimp_client_context_impl.h
+++ b/blimp/client/core/blimp_client_context_impl.h
@@ -24,6 +24,7 @@
 namespace blimp {
 namespace client {
 
+class BlimpCompositorDependencies;
 class BlimpContentsManager;
 class ImeFeature;
 class NavigationFeature;
@@ -40,7 +41,8 @@ class BlimpClientContextImpl : public BlimpClientContext,
   // operations.
   BlimpClientContextImpl(
       scoped_refptr<base::SingleThreadTaskRunner> io_thread_task_runner,
-      scoped_refptr<base::SingleThreadTaskRunner> file_thread_task_runner);
+      scoped_refptr<base::SingleThreadTaskRunner> file_thread_task_runner,
+      std::unique_ptr<CompositorDependencies> compositor_dependencies);
   ~BlimpClientContextImpl() override;
 
   // BlimpClientContext implementation.
@@ -79,6 +81,8 @@ class BlimpClientContextImpl : public BlimpClientContext,
   // The task runner to use for file operations.
   scoped_refptr<base::SingleThreadTaskRunner> file_thread_task_runner_;
 
+  std::unique_ptr<BlimpCompositorDependencies> blimp_compositor_dependencies_;
+
   // The AssignmentSource is used when the user of BlimpClientContextImpl calls
   // Connect() to get a valid assignment and later connect to the engine.
   std::unique_ptr<AssignmentSource> assignment_source_;