Abstract: Methods for profile guided load optimization for browsers are provided. In one aspect, a method includes receiving a request to load a web resource from a first server. The method also includes requesting a loading profile associated with the web resource. The method also includes receiving a response to the loading profile request. The method also includes requesting the web resource using parameter values based on the response to the loading profile request. Systems and machine-readable media are also provided.

Abstract: The subject technology discloses configurations for receiving, by a first process, a set of input events from an application in which the set of input events includes a set of input update commands. The first process writes the set of input update commands into a low-latency graphics pipeline. The subject technology dispatches, by the first process, the set of input update commands from the low-latency graphics pipeline to a second process. The second process receives the set of input update commands from the low-latency graphics pipeline. The subject technology then writes, by the second process, a set of input data into a shared graphics processing unit (GPU) texture.

Abstract: Presenting web elements within an application includes receiving layout data associated with a plurality of web elements for presenting within an application. Visibility data associated with each of the plurality of web elements is received. A priority for each web element from the plurality of web elements is defined based on the received layout data and the received visibility data. A subset of the web elements from the plurality of web elements is selected based on the defined priority. The subset of web elements is presented for display within the application.

Abstract: Processing an input event within an application includes detecting an input event within an application executing on a first thread, the input event being associated with an event handler. A separate execution corresponding to a current state of the application is performed on a second thread based on the event handler associated with the input event. Within the separate execution, a determination is made whether the event handler modifies at least one of a document associated with the application or a default behavior of the application. In a case where the event handler does not modify at least one of the document or the behavior, the subject technology refrains from invoking the event handler on the first thread.