ImageSource misc cleanup

ImageSource misc cleanup

Remove unused includes, simplify and clarify a comment, format the
frameBytesAtIndex() code like the rest of the code in this file.

BUG=None

Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=180434

[tkent, 2014-08-18 07:31:00]

lgtm

https://codereview.chromium.org/485623002/diff/1/Source/platform/graphics/Ima...
File Source/platform/graphics/ImageSource.cpp (right):

https://codereview.chromium.org/485623002/diff/1/Source/platform/graphics/Ima...
Source/platform/graphics/ImageSource.cpp:58: // Create a decoder by sniffing the
encoded data. If insufficient data bytes are available to
nit: I recommend to wrap code comments in 80 columns.
(This is not a rule.)

[Noel Gordon, 2014-08-18 07:54:50]

https://codereview.chromium.org/485623002/diff/1/Source/platform/graphics/Ima...
File Source/platform/graphics/ImageSource.cpp (right):

https://codereview.chromium.org/485623002/diff/1/Source/platform/graphics/Ima...
Source/platform/graphics/ImageSource.cpp:58: // Create a decoder by sniffing the
encoded data. If insufficient data bytes are available to
On 2014/08/18 07:31:00, tkent wrote:
> nit: I recommend to wrap code comments in 80 columns.
> (This is not a rule.)

Acknowledged.

[Noel Gordon, 2014-08-18 07:54:55]

The CQ bit was checked by noel@chromium.org

[commit-bot: I haz the power, 2014-08-18 07:55:53]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/noel@chromium.org/485623002/1

[commit-bot: I haz the power, 2014-08-18 08:29:40]

FYI, CQ is re-trying this CL (attempt #1).
The failing builders are:
  win_blink_compile_dbg on tryserver.blink
(http://build.chromium.org/p/tryserver.blink/builders/win_blink_compile_dbg/bu...)

[commit-bot: I haz the power, 2014-08-18 08:42:13]

Committed patchset #1 (1) as 180434