[Blink] Move unused_resources_reclaim_timer_ into CRPSharedImage

Cleanup from moving resource recycling into CanvasResourceProviderSI.

Bug: 352263194
Change-Id: I6111d6cc4ef5886c0df153ddf5d4b3268df77762
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/6440824
Reviewed-by: Vasiliy Telezhnikov <vasilyt@chromium.org>
Commit-Queue: Colin Blundell <blundell@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1444554}

third_party/blink/renderer/platform/graphics/canvas_resource_provider.cc

@@ -310,6 +310,9 @@ class CanvasResourceProviderSharedImage : public CanvasResourceProvider,
     }
     return !canvas_resources_.empty();
   }
+  bool unused_resources_reclaim_timer_is_running_for_testing() const override {
+    return unused_resources_reclaim_timer_.IsRunning();
+  }
   scoped_refptr<gpu::ClientSharedImage>
   GetBackingClientSharedImageForExternalWrite(
       gpu::SyncToken* internal_access_sync_token,
@@ -950,6 +953,7 @@ class CanvasResourceProviderSharedImage : public CanvasResourceProvider,
   // When and if |resource_recycling_enabled_| is false, |canvas_resources_|
   // will only hold one resource at most.
   WTF::Vector<UnusedResource> canvas_resources_;
+  base::OneShotTimer unused_resources_reclaim_timer_;
   bool resource_recycling_enabled_ = true;
 
   // `raster_context_provider_` holds a reference on the shared

third_party/blink/renderer/platform/graphics/canvas_resource_provider.h

@@ -337,8 +337,8 @@ class PLATFORM_EXPORT CanvasResourceProvider
                       gpu::SyncToken& completion_sync_token);
 
   virtual bool HasUnusedResourcesForTesting() const { return false; }
-  bool unused_resources_reclaim_timer_is_running_for_testing() const {
-    return unused_resources_reclaim_timer_.IsRunning();
+  virtual bool unused_resources_reclaim_timer_is_running_for_testing() const {
+    return false;
   }
   constexpr static base::TimeDelta kUnusedResourceExpirationTime =
       base::Seconds(5);
@@ -397,7 +397,6 @@ class PLATFORM_EXPORT CanvasResourceProvider
   // CanvasResourceProviderSharedImage.
   int num_inflight_resources_ = 0;
   int max_inflight_resources_ = 0;
-  base::OneShotTimer unused_resources_reclaim_timer_;
 
  private:
   friend class FlushForImageListener;