feat(storage): allow Accept-Encoding header

[BrennaEpp]

Fixes #2757

Code needs to be regenerated to match up with the additional parameters in gensupport.

[quartzmo]

kokoro error:

apigee/v1/apigee-gen.go:12017:52: not enough arguments in call to gensupport.SendRequest
	have (context.Context, *"net/http".Client, *"net/http".Request)
	want (context.Context, *"net/http".Client, *"net/http".Request, bool)

[quartzmo]

In order to get a passing Kokoro presubmit check for this PR, you may want to regenerate all of the clients locally and then commit them in your branch, as @codyoss and I usually do. (Recent example in #2670.) You can do it by running make cached in the google-api-go-generator directory. You may also need to run tests locally with the update_golden flag if the golden files are in scope for this change. (See gen_test.go for how that works.)

[BrennaEpp]

In order to get a passing Kokoro presubmit check for this PR, you may want to regenerate all of the clients locally and then commit them in your branch, as @codyoss and I usually do. (Recent example in #2670.) You can do it by running make cached in the google-api-go-generator directory. You may also need to run tests locally with the update_golden flag if the golden files are in scope for this change. (See gen_test.go for how that works.)

I updated everything, but am still seeing errors locally (I can't see the kokoro build):

--- FAIL: TestNewClient (0.00s)
    dial_test.go:26: got *oauth2.Transport, want: *httptransport.authTransport
FAIL
FAIL    google.golang.org/api/transport/http    0.347s

This seems unrelated to the changes I made, can you help me fix?