Move SharedBitmapManager implementation out of content/

content/browser/renderer_host/render_process_host_impl.h

Index: content/browser/renderer_host/render_process_host_impl.h
diff --git a/content/browser/renderer_host/render_process_host_impl.h b/content/browser/renderer_host/render_process_host_impl.h
index 1eac862663f1a142b3979b4f6218164cfb248d42..b0576fddf7baf2f631f61ede858196b5a4c50ac2 100644
--- a/content/browser/renderer_host/render_process_host_impl.h
+++ b/content/browser/renderer_host/render_process_host_impl.h
@@ -20,6 +20,7 @@
 #include "base/single_thread_task_runner.h"
 #include "base/synchronization/waitable_event.h"
 #include "build/build_config.h"
+#include "components/display_compositor/host_shared_bitmap_manager.h"
 #include "content/browser/child_process_launcher.h"
 #include "content/browser/dom_storage/session_storage_namespace_impl.h"
 #include "content/browser/renderer_host/offscreen_canvas_compositor_frame_sink_provider_impl.h"
@@ -604,6 +605,8 @@ class CONTENT_EXPORT RenderProcessHostImpl
   // if a process should be backgrounded.
   int audio_stream_count_ = 0;
 
+  display_compositor::HostSharedBitmapManagerClient bitmap_manager_client_;
+
   // A WeakPtrFactory which is reset every time Cleanup() runs. Used to vend
   // WeakPtrs which are invalidated any time the RPHI is recycled.
   std::unique_ptr<base::WeakPtrFactory<RenderProcessHostImpl>>