Revert of AudioPlayer: Update volume controls.

Revert of AudioPlayer: Update volume controls. (patchset #4 id:60001 of https://codereview.chromium.org/1425033006/ )

Reason for revert:
We decided to punt redesign of audio player to M49.

Original issue's description:
> AudioPlayer: Update volume controls.
>
> This CL includes:
> - Custom volume slider is replaced with paper-slider, which is dynamically shown on the top of control panel when volume button is activated.
>
> BUG=488229
>
> Committed: https://crrev.com/8847bc03c848c4f5dab165b9cb796a79ec69ef72
> Cr-Commit-Position: refs/heads/master@{#357069}

TBR=yawano@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=488229
Committed: https://crrev.com/7ca3f86984f7527a62fcf76ed454f3afd99fe6e3
Cr-Commit-Position: refs/heads/master@{#359284}

[fukino, 2015-11-12 08:23:54]

Created Revert of AudioPlayer: Update volume controls.

[commit-bot: I haz the power, 2015-11-12 08:24:14]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1432393003/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1432393003/1

[commit-bot: I haz the power, 2015-11-12 08:24:43]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2015-11-12 08:24:44]

Failed to apply patch for
ui/file_manager/audio_player/elements/compiled_resources.gyp:
While running git apply --index -3 -p1;
  error: ui/file_manager/audio_player/elements/compiled_resources.gyp: does not
exist in index

Patch:       ui/file_manager/audio_player/elements/compiled_resources.gyp
Index: ui/file_manager/audio_player/elements/compiled_resources.gyp
diff --git a/ui/file_manager/audio_player/elements/compiled_resources.gyp
b/ui/file_manager/audio_player/elements/compiled_resources.gyp
index
8ff70cda82d8bdde7acb90da2cef5098a033a607..7e420190882f3be63cd1ea82352cf30db8db172a
100644
--- a/ui/file_manager/audio_player/elements/compiled_resources.gyp
+++ b/ui/file_manager/audio_player/elements/compiled_resources.gyp
@@ -3,6 +3,16 @@
 # found in the LICENSE file.
 {
   'targets': [
+    {
+      'target_name': 'volume_controller',
+      'variables': {
+        'depends': [],
+        'externs': []
+      },
+      'includes': [
+        '../../compile_js.gypi'
+      ]
+    },
     {
       'target_name': 'track_list',
       'variables': {

[commit-bot: I haz the power, 2015-11-12 08:25:03]

The CQ bit was unchecked by commit-bot@chromium.org

[fukino, 2015-11-12 08:28:44]

The CQ bit was checked by fukino@chromium.org

[commit-bot: I haz the power, 2015-11-12 08:28:57]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1432393003/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1432393003/1

[commit-bot: I haz the power, 2015-11-12 08:29:44]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-11-12 20:05:54]

Patchset 1 (id:??) landed as
https://crrev.com/7ca3f86984f7527a62fcf76ed454f3afd99fe6e3
Cr-Commit-Position: refs/heads/master@{#359284}