| Index: components/subresource_filter/content/common/subresource_filter_messages.h | 
| diff --git a/components/subresource_filter/content/common/subresource_filter_messages.h b/components/subresource_filter/content/common/subresource_filter_messages.h | 
| index 209c684ac6b6caae74d437e366775150539df3a9..84ed28bc51b3526e7e65f3960c37cf1756e5a431 100644 | 
| --- a/components/subresource_filter/content/common/subresource_filter_messages.h | 
| +++ b/components/subresource_filter/content/common/subresource_filter_messages.h | 
| @@ -37,13 +37,20 @@ IPC_STRUCT_TRAITS_END() | 
| IPC_MESSAGE_CONTROL1(SubresourceFilterMsg_SetRulesetForProcess, | 
| IPC::PlatformFileForTransit /* ruleset_file */); | 
|  | 
| -// Instructs the renderer to activate subresource filtering for the currently | 
| -// ongoing provisional document load in a frame. The message must arrive after | 
| -// the provisional load starts, but before it is committed on the renderer side. | 
| +// Instructs the renderer to activate subresource filtering at the specified | 
| +// |activation_level| for the document load committed next in a frame. | 
| +// | 
| +// Without browser-side navigation, the message must arrive just before the | 
| +// provisional load is committed on the renderer side. In practice, it is often | 
| +// sent after the provisional load has already started, but this is not a | 
| +// requirement. The message will have no effect if the provisional load fails. | 
| +// | 
| +// With browser-side navigation enabled, the message must arrive just before | 
| +// FrameMsg_CommitNavigation. | 
| +// | 
| // If no message arrives, the default behavior is ActivationLevel::DISABLED. | 
| -IPC_MESSAGE_ROUTED3(SubresourceFilterMsg_ActivateForProvisionalLoad, | 
| +IPC_MESSAGE_ROUTED2(SubresourceFilterMsg_ActivateForNextCommittedLoad, | 
| subresource_filter::ActivationLevel /* activation_level */, | 
| -                    GURL /* url */, | 
| bool /* measure_performance */); | 
|  | 
| // ---------------------------------------------------------------------------- | 
|  |