UI: Rename MediaState to AlertState

UI: Rename MediaState to AlertState

With the inclusion of Bluetooth to the Media State Indicator, the name
"Media State Indicator" becomes a misnomer. This patch makes the enum
"TabMediaState" into an "enum class" named "TabAlertState" and renames the class
"MediaIndicatorButton" to "AlertIndicatorButton".

Since we were there already, this patch also converts the "TabMutedReason" and
"TabMutedResult" into enum classes.

See issue for a summary of the new names.

BUG=598086
Committed: https://crrev.com/71c3f14505c8c25dad48ab124da342f579a315fb
Cr-Commit-Position: refs/heads/master@{#384028}

[ortuno, 2016-03-25 15:30:13]

Description was changed from

==========
ui: Rename MediaState to ActivePermission

Tab Utils:
TabMediaState -> TabActivePermission

TAB_MEDIA_STATE_NONE                -> TabActivePermission::NONE
TAB_MEDIA_STATE_RECORDING           -> TabActivePermission::MEDIA_RECORDING
TAB_MEDIA_STATE_CAPTURING           -> TabActivePermission::TAB_CAPTURING
TAB_MEDIA_STATE_AUDIO_PLAYING       -> TabActivePermission::AUDIO_PLAYING
TAB_MEDIA_STATE_AUDIO_MUTING        -> TabActivePermission::AUDIO_MUTING
TAB_MEDIA_STATE_BLUETOOTH_CONNECTED -> TabActivePermission::BLUETOOTH_CONNECTED


TAB_MUTED_REASON_NONE            -> TabMutedReason::NONE
TAB_MUTED_REASON_CONTEXT_MENU    -> TabMutedReason::CONTEXT_MENU
TAB_MUTED_REASON_AUDIO_INDICATOR -> TabMutedReason::AUDIO_INDICATOR
TAB_MUTED_REASON_MEDIA_CAPTURE   -> TabMutedReason::MEDIA_CAPTURE
TAB_MUTED_REASON_EXTENSION       -> TabMutedReason::EXTENSION

TAB_MUTED_RESULT_SUCCESS          -> TabMutedResult::SUCCESS
TAB_MUTED_RESULT_FAIL_NOT_ENABLED -> TabMutedResult::FAIL_NOT_ENABLED
TAB_MUTED_RESULT_FAIL_TABCAPTURE  -> TabMutedResult::FAIL_TABCAPTURE

ShouldTabShowMediaIndicator          -> ShouldTabShowActivePermissionIndicator
GetTabMediaStateForContents          -> GetTabActivePermissionForContents
GetTabMediaIndicatorImage            -> GetTabActivePermissionIndicatorImage
GetTabMediaIndicatorAffordanceImage  ->
GetTabActivePermissionIndicatorAffordanceImage
CreateTabMediaIndicatorFadeAnimation ->
CreateTabActivePermissionIndicatorFadeAnimation


MediaIndicatorButton:

MediaIndicatorButton   -> ActivePermissionIndicatorButton
TransitionToMediaState -> TransitionToActivePermission

Tab:

MediaStateChanged        -> ActivePermissionChanged
ShouldShowMediaIndicator -> ShouldShowActivePermissionIndicator
media_indicator_button_  -> active_permission_indicator_button_
showing_media_indicator_ -> showing_active_permission_indicator_

TabRenderData:
media_state -> active_permission

TabUnitTest
GetMediaIndicatorBounds -> GetActivePermissionIndicatorBounds


BUG=
==========

to

==========
UI: Rename MediaState to ActivePermission

Tab Utils:
TabMediaState -> TabActivePermission

TAB_MEDIA_STATE_NONE                -> TabActivePermission::NONE
TAB_MEDIA_STATE_RECORDING           -> TabActivePermission::MEDIA_RECORDING
TAB_MEDIA_STATE_CAPTURING           -> TabActivePermission::TAB_CAPTURING
TAB_MEDIA_STATE_AUDIO_PLAYING       -> TabActivePermission::AUDIO_PLAYING
TAB_MEDIA_STATE_AUDIO_MUTING        -> TabActivePermission::AUDIO_MUTING
TAB_MEDIA_STATE_BLUETOOTH_CONNECTED -> TabActivePermission::BLUETOOTH_CONNECTED


TAB_MUTED_REASON_NONE            -> TabMutedReason::NONE
TAB_MUTED_REASON_CONTEXT_MENU    -> TabMutedReason::CONTEXT_MENU
TAB_MUTED_REASON_AUDIO_INDICATOR -> TabMutedReason::AUDIO_INDICATOR
TAB_MUTED_REASON_MEDIA_CAPTURE   -> TabMutedReason::MEDIA_CAPTURE
TAB_MUTED_REASON_EXTENSION       -> TabMutedReason::EXTENSION

TAB_MUTED_RESULT_SUCCESS          -> TabMutedResult::SUCCESS
TAB_MUTED_RESULT_FAIL_NOT_ENABLED -> TabMutedResult::FAIL_NOT_ENABLED
TAB_MUTED_RESULT_FAIL_TABCAPTURE  -> TabMutedResult::FAIL_TABCAPTURE

ShouldTabShowMediaIndicator          -> ShouldTabShowActivePermissionIndicator
GetTabMediaStateForContents          -> GetTabActivePermissionForContents
GetTabMediaIndicatorImage            -> GetTabActivePermissionIndicatorImage
GetTabMediaIndicatorAffordanceImage  ->
GetTabActivePermissionIndicatorAffordanceImage
CreateTabMediaIndicatorFadeAnimation ->
CreateTabActivePermissionIndicatorFadeAnimation


MediaIndicatorButton:

MediaIndicatorButton   -> ActivePermissionIndicatorButton
TransitionToMediaState -> TransitionToActivePermission

Tab:

MediaStateChanged        -> ActivePermissionChanged
ShouldShowMediaIndicator -> ShouldShowActivePermissionIndicator
media_indicator_button_  -> active_permission_indicator_button_
showing_media_indicator_ -> showing_active_permission_indicator_

TabRenderData:
media_state -> active_permission

TabUnitTest
GetMediaIndicatorBounds -> GetActivePermissionIndicatorBounds


BUG=
==========

[ortuno, 2016-03-25 19:25:28]

Description was changed from

==========
UI: Rename MediaState to ActivePermission

Tab Utils:
TabMediaState -> TabActivePermission

TAB_MEDIA_STATE_NONE                -> TabActivePermission::NONE
TAB_MEDIA_STATE_RECORDING           -> TabActivePermission::MEDIA_RECORDING
TAB_MEDIA_STATE_CAPTURING           -> TabActivePermission::TAB_CAPTURING
TAB_MEDIA_STATE_AUDIO_PLAYING       -> TabActivePermission::AUDIO_PLAYING
TAB_MEDIA_STATE_AUDIO_MUTING        -> TabActivePermission::AUDIO_MUTING
TAB_MEDIA_STATE_BLUETOOTH_CONNECTED -> TabActivePermission::BLUETOOTH_CONNECTED


TAB_MUTED_REASON_NONE            -> TabMutedReason::NONE
TAB_MUTED_REASON_CONTEXT_MENU    -> TabMutedReason::CONTEXT_MENU
TAB_MUTED_REASON_AUDIO_INDICATOR -> TabMutedReason::AUDIO_INDICATOR
TAB_MUTED_REASON_MEDIA_CAPTURE   -> TabMutedReason::MEDIA_CAPTURE
TAB_MUTED_REASON_EXTENSION       -> TabMutedReason::EXTENSION

TAB_MUTED_RESULT_SUCCESS          -> TabMutedResult::SUCCESS
TAB_MUTED_RESULT_FAIL_NOT_ENABLED -> TabMutedResult::FAIL_NOT_ENABLED
TAB_MUTED_RESULT_FAIL_TABCAPTURE  -> TabMutedResult::FAIL_TABCAPTURE

ShouldTabShowMediaIndicator          -> ShouldTabShowActivePermissionIndicator
GetTabMediaStateForContents          -> GetTabActivePermissionForContents
GetTabMediaIndicatorImage            -> GetTabActivePermissionIndicatorImage
GetTabMediaIndicatorAffordanceImage  ->
GetTabActivePermissionIndicatorAffordanceImage
CreateTabMediaIndicatorFadeAnimation ->
CreateTabActivePermissionIndicatorFadeAnimation


MediaIndicatorButton:

MediaIndicatorButton   -> ActivePermissionIndicatorButton
TransitionToMediaState -> TransitionToActivePermission

Tab:

MediaStateChanged        -> ActivePermissionChanged
ShouldShowMediaIndicator -> ShouldShowActivePermissionIndicator
media_indicator_button_  -> active_permission_indicator_button_
showing_media_indicator_ -> showing_active_permission_indicator_

TabRenderData:
media_state -> active_permission

TabUnitTest
GetMediaIndicatorBounds -> GetActivePermissionIndicatorBounds


BUG=
==========

to

==========
UI: Rename MediaState to ActivePermission

Tab Utils:
TabMediaState -> TabActivePermission

TAB_MEDIA_STATE_NONE                -> TabActivePermission::NONE
TAB_MEDIA_STATE_RECORDING           -> TabActivePermission::MEDIA_RECORDING
TAB_MEDIA_STATE_CAPTURING           -> TabActivePermission::TAB_CAPTURING
TAB_MEDIA_STATE_AUDIO_PLAYING       -> TabActivePermission::AUDIO_PLAYING
TAB_MEDIA_STATE_AUDIO_MUTING        -> TabActivePermission::AUDIO_MUTING
TAB_MEDIA_STATE_BLUETOOTH_CONNECTED -> TabActivePermission::BLUETOOTH_CONNECTED


TAB_MUTED_REASON_NONE            -> TabMutedReason::NONE
TAB_MUTED_REASON_CONTEXT_MENU    -> TabMutedReason::CONTEXT_MENU
TAB_MUTED_REASON_AUDIO_INDICATOR -> TabMutedReason::AUDIO_INDICATOR
TAB_MUTED_REASON_MEDIA_CAPTURE   -> TabMutedReason::MEDIA_CAPTURE
TAB_MUTED_REASON_EXTENSION       -> TabMutedReason::EXTENSION

TAB_MUTED_RESULT_SUCCESS          -> TabMutedResult::SUCCESS
TAB_MUTED_RESULT_FAIL_NOT_ENABLED -> TabMutedResult::FAIL_NOT_ENABLED
TAB_MUTED_RESULT_FAIL_TABCAPTURE  -> TabMutedResult::FAIL_TABCAPTURE

ShouldTabShowMediaIndicator          -> ShouldTabShowActivePermissionIndicator
GetTabMediaStateForContents          -> GetTabActivePermissionForContents
GetTabMediaIndicatorImage            -> GetTabActivePermissionIndicatorImage
GetTabMediaIndicatorAffordanceImage  ->
GetTabActivePermissionIndicatorAffordanceImage
CreateTabMediaIndicatorFadeAnimation ->
CreateTabActivePermissionIndicatorFadeAnimation


MediaIndicatorButton:

MediaIndicatorButton   -> ActivePermissionIndicatorButton
TransitionToMediaState -> TransitionToActivePermission

Tab:

MediaStateChanged        -> ActivePermissionChanged
ShouldShowMediaIndicator -> ShouldShowActivePermissionIndicator
media_indicator_button_  -> active_permission_indicator_button_
showing_media_indicator_ -> showing_active_permission_indicator_

TabRenderData:
media_state -> active_permission

TabUnitTest
GetMediaIndicatorBounds -> GetActivePermissionIndicatorBounds

BrowserWindowCocoa
UpdateMediaState -> UpdateActivePermission



BUG=
==========

[ortuno, 2016-03-25 22:27:45]

Description was changed from

==========
UI: Rename MediaState to ActivePermission

Tab Utils:
TabMediaState -> TabActivePermission

TAB_MEDIA_STATE_NONE                -> TabActivePermission::NONE
TAB_MEDIA_STATE_RECORDING           -> TabActivePermission::MEDIA_RECORDING
TAB_MEDIA_STATE_CAPTURING           -> TabActivePermission::TAB_CAPTURING
TAB_MEDIA_STATE_AUDIO_PLAYING       -> TabActivePermission::AUDIO_PLAYING
TAB_MEDIA_STATE_AUDIO_MUTING        -> TabActivePermission::AUDIO_MUTING
TAB_MEDIA_STATE_BLUETOOTH_CONNECTED -> TabActivePermission::BLUETOOTH_CONNECTED


TAB_MUTED_REASON_NONE            -> TabMutedReason::NONE
TAB_MUTED_REASON_CONTEXT_MENU    -> TabMutedReason::CONTEXT_MENU
TAB_MUTED_REASON_AUDIO_INDICATOR -> TabMutedReason::AUDIO_INDICATOR
TAB_MUTED_REASON_MEDIA_CAPTURE   -> TabMutedReason::MEDIA_CAPTURE
TAB_MUTED_REASON_EXTENSION       -> TabMutedReason::EXTENSION

TAB_MUTED_RESULT_SUCCESS          -> TabMutedResult::SUCCESS
TAB_MUTED_RESULT_FAIL_NOT_ENABLED -> TabMutedResult::FAIL_NOT_ENABLED
TAB_MUTED_RESULT_FAIL_TABCAPTURE  -> TabMutedResult::FAIL_TABCAPTURE

ShouldTabShowMediaIndicator          -> ShouldTabShowActivePermissionIndicator
GetTabMediaStateForContents          -> GetTabActivePermissionForContents
GetTabMediaIndicatorImage            -> GetTabActivePermissionIndicatorImage
GetTabMediaIndicatorAffordanceImage  ->
GetTabActivePermissionIndicatorAffordanceImage
CreateTabMediaIndicatorFadeAnimation ->
CreateTabActivePermissionIndicatorFadeAnimation


MediaIndicatorButton:

MediaIndicatorButton   -> ActivePermissionIndicatorButton
TransitionToMediaState -> TransitionToActivePermission

Tab:

MediaStateChanged        -> ActivePermissionChanged
ShouldShowMediaIndicator -> ShouldShowActivePermissionIndicator
media_indicator_button_  -> active_permission_indicator_button_
showing_media_indicator_ -> showing_active_permission_indicator_

TabRenderData:
media_state -> active_permission

TabUnitTest
GetMediaIndicatorBounds -> GetActivePermissionIndicatorBounds

BrowserWindowCocoa
UpdateMediaState -> UpdateActivePermission



BUG=
==========

to

==========
UI: Rename MediaState to ActivePermission

With the inclusion of Bluetooth to the Media State Indicator, the name "Media
State Indicator" becomes a misnomer. We should rename it. jyasskin proposed
Active Permission Indicator.

See issue for a summary of the new names.

BUG=598086
==========

[miu, 2016-03-25 23:35:22]

Hmm...The word "permission" is also a misnomer here.  ;-)  For some of these,
there is no "permission" component implied; and for others, the permissions are
being handled via other UI mechanisms.  In other words, until the bluetooth case
came along, the purpose was to show the user that an important import/export of
media was occurring to/from a tab (i.e., with possible privacy concerns, or
user-annoyance concerns).

Suggestion:

TabMediaState -> TabAlertState (or TabActivityState, but "alert" feels more
concrete)
MediaIndicatorButton -> AlertIndicatorButton
...etc...

Also, if you're going to rename the files, please also update the OWNERS files
to match.  :)

[miu, 2016-03-25 23:35:44]

Description was changed from

==========
UI: Rename MediaState to ActivePermission

With the inclusion of Bluetooth to the Media State Indicator, the name "Media
State Indicator" becomes a misnomer. We should rename it. jyasskin proposed
Active Permission Indicator.

See issue for a summary of the new names.

BUG=598086
==========

to

==========
UI: Rename MediaState to ActivePermission

With the inclusion of Bluetooth to the Media State Indicator, the name "Media
State Indicator" becomes a misnomer. We should rename it. jyasskin proposed
Active Permission Indicator.

See issue for a summary of the new names.

BUG=598086
==========

[miu, 2016-03-25 23:35:44]

miu@chromium.org changed reviewers:
+ miu@chromium.org

[ortuno, 2016-03-28 20:59:31]

On 2016/03/25 at 23:35:22, miu wrote:
> Hmm...The word "permission" is also a misnomer here.  ;-)  For some of these,
there is no "permission" component implied; and for others, the permissions are
being handled via other UI mechanisms.  In other words, until the bluetooth case
came along, the purpose was to show the user that an important import/export of
media was occurring to/from a tab (i.e., with possible privacy concerns, or
user-annoyance concerns).
> 
> Suggestion:
> 
> TabMediaState -> TabAlertState (or TabActivityState, but "alert" feels more
concrete)
> MediaIndicatorButton -> AlertIndicatorButton
> ...etc...
> 
> Also, if you're going to rename the files, please also update the OWNERS files
to match.  :)

Argh. Is the cocoa OWNERS file the one I forgot?

[ortuno, 2016-03-28 21:00:26]

ortuno@chromium.org changed reviewers:
+ felt@chromium.org

[ortuno, 2016-03-28 21:00:26]

@felt: miu suggested TabAlert state. Is that OK?

[felt, 2016-03-28 21:02:14]

On 2016/03/28 21:00:26, ortuno wrote:
> @felt: miu suggested TabAlert state. Is that OK?

sure, that works for me too

[miu, 2016-03-28 22:19:39]

On 2016/03/28 20:59:31, ortuno wrote:
> On 2016/03/25 at 23:35:22, miu wrote:
> > Also, if you're going to rename the files, please also update the OWNERS
files
> to match.  :)
> 
> Argh. Is the cocoa OWNERS file the one I forgot?

Oh, never mind.  I thought I was only an owner for the
.../ui/views/media_indicator_button* files, but I'm an owner for the whole dir. 
We're good.

[ortuno, 2016-03-29 00:49:23]

Description was changed from

==========
UI: Rename MediaState to ActivePermission

With the inclusion of Bluetooth to the Media State Indicator, the name "Media
State Indicator" becomes a misnomer. We should rename it. jyasskin proposed
Active Permission Indicator.

See issue for a summary of the new names.

BUG=598086
==========

to

==========
UI: Rename MediaState to AlertState

With the inclusion of Bluetooth to the Media State Indicator, the name
"Media State Indicator" becomes a misnomer. This patch renames MediaState to
AlertState.

See issue for a summary of the new names.

BUG=598086
==========

[ortuno, 2016-03-29 00:53:16]

@miu: PTAL

[miu, 2016-03-29 02:22:53]

lgtm!  Thanks for doing this follow-up change, and kudos for the extra tab mute
enum clean-up.  :)

https://codereview.chromium.org/1827083004/diff/60001/chrome/browser/ui/cocoa...
File chrome/browser/ui/cocoa/browser_window_controller.h (right):

https://codereview.chromium.org/1827083004/diff/60001/chrome/browser/ui/cocoa...
chrome/browser/ui/cocoa/browser_window_controller.h:384: // Sett
TabUtils::TabAlertState for a list of all possible alert states.
s/Sett/See/

[ortuno, 2016-03-29 15:14:54]

Thanks!

https://codereview.chromium.org/1827083004/diff/60001/chrome/browser/ui/cocoa...
File chrome/browser/ui/cocoa/browser_window_controller.h (right):

https://codereview.chromium.org/1827083004/diff/60001/chrome/browser/ui/cocoa...
chrome/browser/ui/cocoa/browser_window_controller.h:384: // Sett
TabUtils::TabAlertState for a list of all possible alert states.
On 2016/03/29 at 02:22:52, miu wrote:
> s/Sett/See/

Done.

[ortuno, 2016-03-29 15:20:35]

ortuno@chromium.org changed reviewers:
+ isherman@chromium.org, sky@chromium.org

[ortuno, 2016-03-29 15:20:36]

felt: PTAL
sky: PTAL at chrome/browser/ui/
isherman: PTAL at tools/metrics/actions

[felt, 2016-03-29 16:51:28]

lgtm, nice change; you also might want to mention the new enum in the
description

[ortuno, 2016-03-29 16:55:10]

Description was changed from

==========
UI: Rename MediaState to AlertState

With the inclusion of Bluetooth to the Media State Indicator, the name
"Media State Indicator" becomes a misnomer. This patch renames MediaState to
AlertState.

See issue for a summary of the new names.

BUG=598086
==========

to

==========
UI: Rename MediaState to AlertState

With the inclusion of Bluetooth to the Media State Indicator, the name
"Media State Indicator" becomes a misnomer. This patch makes the enum 
"TabMediaState" into an "enum class" named "TabAlertState" and renames the class
"MediaIndicatorButton" to "AlertIndicatorButton".

Since we were there already, this patch also converts the "

See issue for a summary of the new names.

BUG=598086
==========

[ortuno, 2016-03-29 16:55:49]

Description was changed from

==========
UI: Rename MediaState to AlertState

With the inclusion of Bluetooth to the Media State Indicator, the name
"Media State Indicator" becomes a misnomer. This patch makes the enum 
"TabMediaState" into an "enum class" named "TabAlertState" and renames the class
"MediaIndicatorButton" to "AlertIndicatorButton".

Since we were there already, this patch also converts the "

See issue for a summary of the new names.

BUG=598086
==========

to

==========
UI: Rename MediaState to AlertState

With the inclusion of Bluetooth to the Media State Indicator, the name
"Media State Indicator" becomes a misnomer. This patch makes the enum 
"TabMediaState" into an "enum class" named "TabAlertState" and renames the class
"MediaIndicatorButton" to "AlertIndicatorButton".

Since we were there already, this patch also converts the "TabMutedReason" and
"TabMutedResult" into enum classes.

See issue for a summary of the new names.

BUG=598086
==========

[Ilya Sherman, 2016-03-30 01:18:59]

actions.xml lgtm

[sky, 2016-03-30 15:48:21]

LGTM

https://codereview.chromium.org/1827083004/diff/80001/chrome/chrome_browser_u...
File chrome/chrome_browser_ui.gypi (right):

https://codereview.chromium.org/1827083004/diff/80001/chrome/chrome_browser_u...
chrome/chrome_browser_ui.gypi:2463:
'browser/ui/views/tabs/alert_indicator_button.cc',
nit: keep sorted.

https://codereview.chromium.org/1827083004/diff/80001/chrome/chrome_tests_uni...
File chrome/chrome_tests_unit.gypi (right):

https://codereview.chromium.org/1827083004/diff/80001/chrome/chrome_tests_uni...
chrome/chrome_tests_unit.gypi:1377:
'browser/ui/views/tabs/alert_indicator_button_unittest.cc',
nit: keep sorted.

[ortuno, 2016-03-30 17:01:06]

The CQ bit was checked by ortuno@chromium.org

[ortuno, 2016-03-30 17:01:07]

Thanks!

https://codereview.chromium.org/1827083004/diff/80001/chrome/chrome_browser_u...
File chrome/chrome_browser_ui.gypi (right):

https://codereview.chromium.org/1827083004/diff/80001/chrome/chrome_browser_u...
chrome/chrome_browser_ui.gypi:2463:
'browser/ui/views/tabs/alert_indicator_button.cc',
On 2016/03/30 at 15:48:21, sky wrote:
> nit: keep sorted.

Done.

https://codereview.chromium.org/1827083004/diff/80001/chrome/chrome_tests_uni...
File chrome/chrome_tests_unit.gypi (right):

https://codereview.chromium.org/1827083004/diff/80001/chrome/chrome_tests_uni...
chrome/chrome_tests_unit.gypi:1377:
'browser/ui/views/tabs/alert_indicator_button_unittest.cc',
On 2016/03/30 at 15:48:21, sky wrote:
> nit: keep sorted.

Done.

[ortuno, 2016-03-30 17:01:07]

The patchset sent to the CQ was uploaded after l-g-t-m from miu@chromium.org,
felt@chromium.org, isherman@chromium.org, sky@chromium.org
Link to the patchset: https://codereview.chromium.org/1827083004/#ps100001
(title: "Keep gypi ordered")

[commit-bot: I haz the power, 2016-03-30 17:01:39]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1827083004/100001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1827083004/100001

[commit-bot: I haz the power, 2016-03-30 18:27:08]

Committed patchset #6 (id:100001)

[commit-bot: I haz the power, 2016-03-30 18:28:38]

Description was changed from

==========
UI: Rename MediaState to AlertState

With the inclusion of Bluetooth to the Media State Indicator, the name
"Media State Indicator" becomes a misnomer. This patch makes the enum 
"TabMediaState" into an "enum class" named "TabAlertState" and renames the class
"MediaIndicatorButton" to "AlertIndicatorButton".

Since we were there already, this patch also converts the "TabMutedReason" and
"TabMutedResult" into enum classes.

See issue for a summary of the new names.

BUG=598086
==========

to

==========
UI: Rename MediaState to AlertState

With the inclusion of Bluetooth to the Media State Indicator, the name
"Media State Indicator" becomes a misnomer. This patch makes the enum
"TabMediaState" into an "enum class" named "TabAlertState" and renames the class
"MediaIndicatorButton" to "AlertIndicatorButton".

Since we were there already, this patch also converts the "TabMutedReason" and
"TabMutedResult" into enum classes.

See issue for a summary of the new names.

BUG=598086

Committed: https://crrev.com/71c3f14505c8c25dad48ab124da342f579a315fb
Cr-Commit-Position: refs/heads/master@{#384028}
==========

[commit-bot: I haz the power, 2016-03-30 18:28:40]

Patchset 6 (id:??) landed as
https://crrev.com/71c3f14505c8c25dad48ab124da342f579a315fb
Cr-Commit-Position: refs/heads/master@{#384028}