Clear Image Decode Cache on Navigation

cc/trees/layer_tree_host_impl.cc

Index: cc/trees/layer_tree_host_impl.cc
diff --git a/cc/trees/layer_tree_host_impl.cc b/cc/trees/layer_tree_host_impl.cc
index 40cfdfd14a95a54b874725eaefb21aead859bc82..658403fffc6937a5762c8bafe06014819272376f 100644
--- a/cc/trees/layer_tree_host_impl.cc
+++ b/cc/trees/layer_tree_host_impl.cc
@@ -2344,6 +2344,11 @@ LayerTreeHostImpl::TakeCompletedImageDecodeCallbacks() {
   return result;
 }
 
+void LayerTreeHostImpl::ClearImageCacheOnNavigation() {
+  if (image_decode_cache_)
+    image_decode_cache_->ClearCache();
+}
+
 void LayerTreeHostImpl::DidChangeScrollbarVisibility() {
   // Need a commit since input handling for scrollbars is handled in Blink so
   // we need to communicate to Blink when the compositor shows/hides the