[GeometryInterface] Add rotate*(), rotateFromVector*() function.

[GeometryInterface] Add rotate*(), rotateFromVector*() function.

rotate() and rotateSelf() function
1. If rotY and rotZ are both missing,
 set rotZ to the value of rotX and set rotX and rotY to zero.
2. If rotY is still missing, set rotY to zero.
3. If rotZ is still missing, set rotZ to zero.
4. If rotX or rotY are non-zero,
 set is2D of the current matrix to false.
5. Post-multiply a rotation transformation on the current matrix around the vector 0, 0, 1
 by the specified rotation rotZ in degrees.
6. Post-multiply a rotation transformation on the current matrix around the vector 0, 1, 0
 by the specified rotation rotY in degrees.
7. Post-multiply a rotation transformation on the current matrix around the vector 1, 0, 0
 by the specified rotation rotX in degrees.
8. Return the current matrix.

rotateFromVertor() and rotateFromVertorSelf() function
1. Post-multiply a rotation transformation on the current matrix.
 The rotation angle is determined by the angle between the vector (1,0)T and (x,y)T
 in the clockwise direction.
2. Return the current matrix.

spec list:
- https://drafts.fxtf.org/geometry/#dom-dommatrix-rotateself
- https://drafts.fxtf.org/geometry/#dom-dommatrixreadonly-rotate
- https://drafts.fxtf.org/geometry/#dom-dommatrix-rotatefromvectorself
- https://drafts.fxtf.org/geometry/#dom-dommatrixreadonly-rotatefromvector

BUG=388780, 645878, 645882
Committed: https://crrev.com/66e25541d7b2df4771ad675d96a25ad32f42588f
Cr-Commit-Position: refs/heads/master@{#427289}

[Hwanseung Lee, 2016-10-23 08:35:50]

Description was changed from

==========
[GeometryInterface] Add rotate*(), rotateFromVector*() function.

spec list:
- https://drafts.fxtf.org/geometry/#dom-dommatrix-rotateself
- https://drafts.fxtf.org/geometry/#dom-dommatrixreadonly-rotate
- https://drafts.fxtf.org/geometry/#dom-dommatrix-rotatefromvectorself
- https://drafts.fxtf.org/geometry/#dom-dommatrixreadonly-rotatefromvector

BUG=388780, 645878, 645882
==========

to

==========
[GeometryInterface] Add rotate*(), rotateFromVector*() function.

rotate*() function
1. If rotY and rotZ are both missing,
 set rotZ to the value of rotX and set rotX and rotY to zero.
2. If rotY is still missing, set rotY to zero.
3. If rotZ is still missing, set rotZ to zero.
4. If rotX or rotY are non-zero, 
 set is2D of the current matrix to false.
5. Post-multiply a rotation transformation on the current matrix around the
vector 0, 0, 1
 by the specified rotation rotZ in degrees.
6. Post-multiply a rotation transformation on the current matrix around the
vector 0, 1, 0
 by the specified rotation rotY in degrees.
7. Post-multiply a rotation transformation on the current matrix around the
vector 1, 0, 0
 by the specified rotation rotX in degrees.
8. Return the current matrix.

rotateFromVertor*() function
1. Post-multiply a rotation transformation on the current matrix. The rotation
angle is determined by the angle between the vector (1,0)T and (x,y)T in the
clockwise direction.
2. Return the current matrix.

spec list:
- https://drafts.fxtf.org/geometry/#dom-dommatrix-rotateself
- https://drafts.fxtf.org/geometry/#dom-dommatrixreadonly-rotate
- https://drafts.fxtf.org/geometry/#dom-dommatrix-rotatefromvectorself
- https://drafts.fxtf.org/geometry/#dom-dommatrixreadonly-rotatefromvector

BUG=388780, 645878, 645882
==========

[Hwanseung Lee, 2016-10-23 08:36:13]

Description was changed from

==========
[GeometryInterface] Add rotate*(), rotateFromVector*() function.

rotate*() function
1. If rotY and rotZ are both missing,
 set rotZ to the value of rotX and set rotX and rotY to zero.
2. If rotY is still missing, set rotY to zero.
3. If rotZ is still missing, set rotZ to zero.
4. If rotX or rotY are non-zero, 
 set is2D of the current matrix to false.
5. Post-multiply a rotation transformation on the current matrix around the
vector 0, 0, 1
 by the specified rotation rotZ in degrees.
6. Post-multiply a rotation transformation on the current matrix around the
vector 0, 1, 0
 by the specified rotation rotY in degrees.
7. Post-multiply a rotation transformation on the current matrix around the
vector 1, 0, 0
 by the specified rotation rotX in degrees.
8. Return the current matrix.

rotateFromVertor*() function
1. Post-multiply a rotation transformation on the current matrix. The rotation
angle is determined by the angle between the vector (1,0)T and (x,y)T in the
clockwise direction.
2. Return the current matrix.

spec list:
- https://drafts.fxtf.org/geometry/#dom-dommatrix-rotateself
- https://drafts.fxtf.org/geometry/#dom-dommatrixreadonly-rotate
- https://drafts.fxtf.org/geometry/#dom-dommatrix-rotatefromvectorself
- https://drafts.fxtf.org/geometry/#dom-dommatrixreadonly-rotatefromvector

BUG=388780, 645878, 645882
==========

to

==========
[GeometryInterface] Add rotate*(), rotateFromVector*() function.

rotate*() function
1. If rotY and rotZ are both missing,
 set rotZ to the value of rotX and set rotX and rotY to zero.
2. If rotY is still missing, set rotY to zero.
3. If rotZ is still missing, set rotZ to zero.
4. If rotX or rotY are non-zero, 
 set is2D of the current matrix to false.
5. Post-multiply a rotation transformation on the current matrix around the
vector 0, 0, 1
 by the specified rotation rotZ in degrees.
6. Post-multiply a rotation transformation on the current matrix around the
vector 0, 1, 0
 by the specified rotation rotY in degrees.
7. Post-multiply a rotation transformation on the current matrix around the
vector 1, 0, 0
 by the specified rotation rotX in degrees.
8. Return the current matrix.

rotateFromVertor*() function
1. Post-multiply a rotation transformation on the current matrix.
 The rotation angle is determined by the angle between the vector (1,0)T and
(x,y)T in the clockwise direction.
2. Return the current matrix.

spec list:
- https://drafts.fxtf.org/geometry/#dom-dommatrix-rotateself
- https://drafts.fxtf.org/geometry/#dom-dommatrixreadonly-rotate
- https://drafts.fxtf.org/geometry/#dom-dommatrix-rotatefromvectorself
- https://drafts.fxtf.org/geometry/#dom-dommatrixreadonly-rotatefromvector

BUG=388780, 645878, 645882
==========

[Hwanseung Lee, 2016-10-23 08:37:04]

Description was changed from

==========
[GeometryInterface] Add rotate*(), rotateFromVector*() function.

rotate*() function
1. If rotY and rotZ are both missing,
 set rotZ to the value of rotX and set rotX and rotY to zero.
2. If rotY is still missing, set rotY to zero.
3. If rotZ is still missing, set rotZ to zero.
4. If rotX or rotY are non-zero, 
 set is2D of the current matrix to false.
5. Post-multiply a rotation transformation on the current matrix around the
vector 0, 0, 1
 by the specified rotation rotZ in degrees.
6. Post-multiply a rotation transformation on the current matrix around the
vector 0, 1, 0
 by the specified rotation rotY in degrees.
7. Post-multiply a rotation transformation on the current matrix around the
vector 1, 0, 0
 by the specified rotation rotX in degrees.
8. Return the current matrix.

rotateFromVertor*() function
1. Post-multiply a rotation transformation on the current matrix.
 The rotation angle is determined by the angle between the vector (1,0)T and
(x,y)T in the clockwise direction.
2. Return the current matrix.

spec list:
- https://drafts.fxtf.org/geometry/#dom-dommatrix-rotateself
- https://drafts.fxtf.org/geometry/#dom-dommatrixreadonly-rotate
- https://drafts.fxtf.org/geometry/#dom-dommatrix-rotatefromvectorself
- https://drafts.fxtf.org/geometry/#dom-dommatrixreadonly-rotatefromvector

BUG=388780, 645878, 645882
==========

to

==========
[GeometryInterface] Add rotate*(), rotateFromVector*() function.

rotate*() function
1. If rotY and rotZ are both missing,
 set rotZ to the value of rotX and set rotX and rotY to zero.
2. If rotY is still missing, set rotY to zero.
3. If rotZ is still missing, set rotZ to zero.
4. If rotX or rotY are non-zero, 
 set is2D of the current matrix to false.
5. Post-multiply a rotation transformation on the current matrix around the
vector 0, 0, 1
 by the specified rotation rotZ in degrees.
6. Post-multiply a rotation transformation on the current matrix around the
vector 0, 1, 0
 by the specified rotation rotY in degrees.
7. Post-multiply a rotation transformation on the current matrix around the
vector 1, 0, 0
 by the specified rotation rotX in degrees.
8. Return the current matrix.

rotateFromVertor*() function
1. Post-multiply a rotation transformation on the current matrix.
 The rotation angle is determined by the angle between the vector (1,0)T and
(x,y)T
 in the clockwise direction.
2. Return the current matrix.

spec list:
- https://drafts.fxtf.org/geometry/#dom-dommatrix-rotateself
- https://drafts.fxtf.org/geometry/#dom-dommatrixreadonly-rotate
- https://drafts.fxtf.org/geometry/#dom-dommatrix-rotatefromvectorself
- https://drafts.fxtf.org/geometry/#dom-dommatrixreadonly-rotatefromvector

BUG=388780, 645878, 645882
==========

[Hwanseung Lee, 2016-10-23 08:37:54]

Description was changed from

==========
[GeometryInterface] Add rotate*(), rotateFromVector*() function.

rotate*() function
1. If rotY and rotZ are both missing,
 set rotZ to the value of rotX and set rotX and rotY to zero.
2. If rotY is still missing, set rotY to zero.
3. If rotZ is still missing, set rotZ to zero.
4. If rotX or rotY are non-zero, 
 set is2D of the current matrix to false.
5. Post-multiply a rotation transformation on the current matrix around the
vector 0, 0, 1
 by the specified rotation rotZ in degrees.
6. Post-multiply a rotation transformation on the current matrix around the
vector 0, 1, 0
 by the specified rotation rotY in degrees.
7. Post-multiply a rotation transformation on the current matrix around the
vector 1, 0, 0
 by the specified rotation rotX in degrees.
8. Return the current matrix.

rotateFromVertor*() function
1. Post-multiply a rotation transformation on the current matrix.
 The rotation angle is determined by the angle between the vector (1,0)T and
(x,y)T
 in the clockwise direction.
2. Return the current matrix.

spec list:
- https://drafts.fxtf.org/geometry/#dom-dommatrix-rotateself
- https://drafts.fxtf.org/geometry/#dom-dommatrixreadonly-rotate
- https://drafts.fxtf.org/geometry/#dom-dommatrix-rotatefromvectorself
- https://drafts.fxtf.org/geometry/#dom-dommatrixreadonly-rotatefromvector

BUG=388780, 645878, 645882
==========

to

==========
[GeometryInterface] Add rotate*(), rotateFromVector*() function.

rotate() and rotateSelf() function
1. If rotY and rotZ are both missing,
 set rotZ to the value of rotX and set rotX and rotY to zero.
2. If rotY is still missing, set rotY to zero.
3. If rotZ is still missing, set rotZ to zero.
4. If rotX or rotY are non-zero, 
 set is2D of the current matrix to false.
5. Post-multiply a rotation transformation on the current matrix around the
vector 0, 0, 1
 by the specified rotation rotZ in degrees.
6. Post-multiply a rotation transformation on the current matrix around the
vector 0, 1, 0
 by the specified rotation rotY in degrees.
7. Post-multiply a rotation transformation on the current matrix around the
vector 1, 0, 0
 by the specified rotation rotX in degrees.
8. Return the current matrix.

rotateFromVertor() and rotateFromVertorSelf() function
1. Post-multiply a rotation transformation on the current matrix.
 The rotation angle is determined by the angle between the vector (1,0)T and
(x,y)T
 in the clockwise direction.
2. Return the current matrix.

spec list:
- https://drafts.fxtf.org/geometry/#dom-dommatrix-rotateself
- https://drafts.fxtf.org/geometry/#dom-dommatrixreadonly-rotate
- https://drafts.fxtf.org/geometry/#dom-dommatrix-rotatefromvectorself
- https://drafts.fxtf.org/geometry/#dom-dommatrixreadonly-rotatefromvector

BUG=388780, 645878, 645882
==========

[Hwanseung Lee, 2016-10-23 08:39:21]

hs1217.lee@samsung.com changed reviewers:
+ dominicc@chromium.org, jinho.bang@samsung.com

[Hwanseung Lee, 2016-10-23 08:39:22]

@dominicc, zino
PTAL, thank you.

[dominicc (has gone to gerrit), 2016-10-24 02:56:13]

dominicc@chromium.org changed reviewers:
+ meade@chromium.org
- dominicc@chromium.org

[dominicc (has gone to gerrit), 2016-10-24 02:56:54]

+meade who is working on CSS typed OM and is able to review this.

[meade_UTC10, 2016-10-24 05:36:21]

The CQ bit was checked by meade@chromium.org to run a CQ dry run

[commit-bot: I haz the power, 2016-10-24 05:36:30]

Dry run: CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[meade_UTC10, 2016-10-24 05:37:11]

meade@chromium.org changed reviewers:
+ timloh@chromium.org

[meade_UTC10, 2016-10-24 05:37:11]

I only have a few relatively minor comments on this. +Tim for OWNERS.

https://codereview.chromium.org/2444733002/diff/1/third_party/WebKit/LayoutTe...
File
third_party/WebKit/LayoutTests/fast/dom/geometry-interfaces-dom-matrix-rotate.html
(right):

https://codereview.chromium.org/2444733002/diff/1/third_party/WebKit/LayoutTe...
third_party/WebKit/LayoutTests/fast/dom/geometry-interfaces-dom-matrix-rotate.html:60:
assert_matrix_almost_equals(matrix, expectedMatrix);
I had to think for a moment to figure out what the difference between "matrix",
"result" and "expectedMatrix"
I concluded:
matrix -> the matrix that rotateSelf will be called on
result -> the result of a function call that should be equivalent to rotateSelf
expectedMatrix -> The expected result.

To clarify this, how about using these three variable names?:
matrix
rotateResult
expectedResult

https://codereview.chromium.org/2444733002/diff/1/third_party/WebKit/Source/c...
File third_party/WebKit/Source/core/dom/DOMMatrix.h (right):

https://codereview.chromium.org/2444733002/diff/1/third_party/WebKit/Source/c...
third_party/WebKit/Source/core/dom/DOMMatrix.h:97: DOMMatrix* rotateSelf(double
rotX, double rotY, double rotZ);
Can these use default arguments like the nearby functions?

e.g DOMMatrix* rotateSelf(double rotX, double rotY = 0, double rotZ = 0);

https://codereview.chromium.org/2444733002/diff/1/third_party/WebKit/Source/c...
File third_party/WebKit/Source/core/dom/DOMMatrix.idl (right):

https://codereview.chromium.org/2444733002/diff/1/third_party/WebKit/Source/c...
third_party/WebKit/Source/core/dom/DOMMatrix.idl:68: optional unrestricted
double rotZ);
Could these have default arguments too?

[commit-bot: I haz the power, 2016-10-24 07:46:15]

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

[commit-bot: I haz the power, 2016-10-24 07:46:16]

Dry run: Try jobs failed on following builders:
  linux_chromium_chromeos_rel_ng on master.tryserver.chromium.linux (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.linux/builders/linux_chromium_...)

[Hwanseung Lee, 2016-10-24 14:33:43]

@Eddy

i comment about default parameter.

https://codereview.chromium.org/2444733002/diff/1/third_party/WebKit/LayoutTe...
File
third_party/WebKit/LayoutTests/fast/dom/geometry-interfaces-dom-matrix-rotate.html
(right):

https://codereview.chromium.org/2444733002/diff/1/third_party/WebKit/LayoutTe...
third_party/WebKit/LayoutTests/fast/dom/geometry-interfaces-dom-matrix-rotate.html:60:
assert_matrix_almost_equals(matrix, expectedMatrix);
On 2016/10/24 05:37:11, Eddy wrote:
> I had to think for a moment to figure out what the difference between
"matrix",
> "result" and "expectedMatrix"
> I concluded:
> matrix -> the matrix that rotateSelf will be called on
> result -> the result of a function call that should be equivalent to
rotateSelf
> expectedMatrix -> The expected result.
> 
> To clarify this, how about using these three variable names?:
> matrix
> rotateResult
> expectedResult

Done.

https://codereview.chromium.org/2444733002/diff/1/third_party/WebKit/Source/c...
File third_party/WebKit/Source/core/dom/DOMMatrix.h (right):

https://codereview.chromium.org/2444733002/diff/1/third_party/WebKit/Source/c...
third_party/WebKit/Source/core/dom/DOMMatrix.h:97: DOMMatrix* rotateSelf(double
rotX, double rotY, double rotZ);
On 2016/10/24 05:37:11, Eddy wrote:
> Can these use default arguments like the nearby functions?
> 
> e.g DOMMatrix* rotateSelf(double rotX, double rotY = 0, double rotZ = 0);

i don't think so.
rotate(x, 0, 0) is not same with rotate(x).
because, "If rotY and rotZ are both missing, set rotZ to the value of rotX and
set rotX and rotY to zero."
It is stated in the specifications.
how about think about it?

https://codereview.chromium.org/2444733002/diff/1/third_party/WebKit/Source/c...
File third_party/WebKit/Source/core/dom/DOMMatrix.idl (right):

https://codereview.chromium.org/2444733002/diff/1/third_party/WebKit/Source/c...
third_party/WebKit/Source/core/dom/DOMMatrix.idl:68: optional unrestricted
double rotZ);
On 2016/10/24 05:37:11, Eddy wrote:
> Could these have default arguments too?

no. rotY and rotZ does not have a default parameter.
refer to https://drafts.fxtf.org/geometry/#ref-for-dom-dommatrix-rotateself-1.

[meade_UTC10, 2016-10-25 02:33:05]

lgtm

Thanks for the clarifications. Tim, PTAL

https://codereview.chromium.org/2444733002/diff/1/third_party/WebKit/Source/c...
File third_party/WebKit/Source/core/dom/DOMMatrix.h (right):

https://codereview.chromium.org/2444733002/diff/1/third_party/WebKit/Source/c...
third_party/WebKit/Source/core/dom/DOMMatrix.h:97: DOMMatrix* rotateSelf(double
rotX, double rotY, double rotZ);
On 2016/10/24 14:33:43, Hwanseung Lee wrote:
> On 2016/10/24 05:37:11, Eddy wrote:
> > Can these use default arguments like the nearby functions?
> > 
> > e.g DOMMatrix* rotateSelf(double rotX, double rotY = 0, double rotZ = 0);
> 
> i don't think so.
> rotate(x, 0, 0) is not same with rotate(x).
> because, "If rotY and rotZ are both missing, set rotZ to the value of rotX and
> set rotX and rotY to zero."
> It is stated in the specifications.
> how about think about it?

Ah, I see. Thanks for the clarification!

[Timothy Loh, 2016-10-25 04:50:34]

The CQ bit was checked by timloh@chromium.org to run a CQ dry run

[commit-bot: I haz the power, 2016-10-25 04:50:45]

Dry run: CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[Timothy Loh, 2016-10-25 05:24:42]

lgtm

[commit-bot: I haz the power, 2016-10-25 06:12:00]

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

[commit-bot: I haz the power, 2016-10-25 06:12:01]

Dry run: This issue passed the CQ dry run.

[Hwanseung Lee, 2016-10-25 06:33:28]

The CQ bit was checked by hs1217.lee@samsung.com

[commit-bot: I haz the power, 2016-10-25 06:33:48]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2016-10-25 06:38:10]

Description was changed from

==========
[GeometryInterface] Add rotate*(), rotateFromVector*() function.

rotate() and rotateSelf() function
1. If rotY and rotZ are both missing,
 set rotZ to the value of rotX and set rotX and rotY to zero.
2. If rotY is still missing, set rotY to zero.
3. If rotZ is still missing, set rotZ to zero.
4. If rotX or rotY are non-zero, 
 set is2D of the current matrix to false.
5. Post-multiply a rotation transformation on the current matrix around the
vector 0, 0, 1
 by the specified rotation rotZ in degrees.
6. Post-multiply a rotation transformation on the current matrix around the
vector 0, 1, 0
 by the specified rotation rotY in degrees.
7. Post-multiply a rotation transformation on the current matrix around the
vector 1, 0, 0
 by the specified rotation rotX in degrees.
8. Return the current matrix.

rotateFromVertor() and rotateFromVertorSelf() function
1. Post-multiply a rotation transformation on the current matrix.
 The rotation angle is determined by the angle between the vector (1,0)T and
(x,y)T
 in the clockwise direction.
2. Return the current matrix.

spec list:
- https://drafts.fxtf.org/geometry/#dom-dommatrix-rotateself
- https://drafts.fxtf.org/geometry/#dom-dommatrixreadonly-rotate
- https://drafts.fxtf.org/geometry/#dom-dommatrix-rotatefromvectorself
- https://drafts.fxtf.org/geometry/#dom-dommatrixreadonly-rotatefromvector

BUG=388780, 645878, 645882
==========

to

==========
[GeometryInterface] Add rotate*(), rotateFromVector*() function.

rotate() and rotateSelf() function
1. If rotY and rotZ are both missing,
 set rotZ to the value of rotX and set rotX and rotY to zero.
2. If rotY is still missing, set rotY to zero.
3. If rotZ is still missing, set rotZ to zero.
4. If rotX or rotY are non-zero, 
 set is2D of the current matrix to false.
5. Post-multiply a rotation transformation on the current matrix around the
vector 0, 0, 1
 by the specified rotation rotZ in degrees.
6. Post-multiply a rotation transformation on the current matrix around the
vector 0, 1, 0
 by the specified rotation rotY in degrees.
7. Post-multiply a rotation transformation on the current matrix around the
vector 1, 0, 0
 by the specified rotation rotX in degrees.
8. Return the current matrix.

rotateFromVertor() and rotateFromVertorSelf() function
1. Post-multiply a rotation transformation on the current matrix.
 The rotation angle is determined by the angle between the vector (1,0)T and
(x,y)T
 in the clockwise direction.
2. Return the current matrix.

spec list:
- https://drafts.fxtf.org/geometry/#dom-dommatrix-rotateself
- https://drafts.fxtf.org/geometry/#dom-dommatrixreadonly-rotate
- https://drafts.fxtf.org/geometry/#dom-dommatrix-rotatefromvectorself
- https://drafts.fxtf.org/geometry/#dom-dommatrixreadonly-rotatefromvector

BUG=388780, 645878, 645882
==========

[commit-bot: I haz the power, 2016-10-25 06:38:11]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2016-10-25 06:42:01]

Description was changed from

==========
[GeometryInterface] Add rotate*(), rotateFromVector*() function.

rotate() and rotateSelf() function
1. If rotY and rotZ are both missing,
 set rotZ to the value of rotX and set rotX and rotY to zero.
2. If rotY is still missing, set rotY to zero.
3. If rotZ is still missing, set rotZ to zero.
4. If rotX or rotY are non-zero, 
 set is2D of the current matrix to false.
5. Post-multiply a rotation transformation on the current matrix around the
vector 0, 0, 1
 by the specified rotation rotZ in degrees.
6. Post-multiply a rotation transformation on the current matrix around the
vector 0, 1, 0
 by the specified rotation rotY in degrees.
7. Post-multiply a rotation transformation on the current matrix around the
vector 1, 0, 0
 by the specified rotation rotX in degrees.
8. Return the current matrix.

rotateFromVertor() and rotateFromVertorSelf() function
1. Post-multiply a rotation transformation on the current matrix.
 The rotation angle is determined by the angle between the vector (1,0)T and
(x,y)T
 in the clockwise direction.
2. Return the current matrix.

spec list:
- https://drafts.fxtf.org/geometry/#dom-dommatrix-rotateself
- https://drafts.fxtf.org/geometry/#dom-dommatrixreadonly-rotate
- https://drafts.fxtf.org/geometry/#dom-dommatrix-rotatefromvectorself
- https://drafts.fxtf.org/geometry/#dom-dommatrixreadonly-rotatefromvector

BUG=388780, 645878, 645882
==========

to

==========
[GeometryInterface] Add rotate*(), rotateFromVector*() function.

rotate() and rotateSelf() function
1. If rotY and rotZ are both missing,
 set rotZ to the value of rotX and set rotX and rotY to zero.
2. If rotY is still missing, set rotY to zero.
3. If rotZ is still missing, set rotZ to zero.
4. If rotX or rotY are non-zero,
 set is2D of the current matrix to false.
5. Post-multiply a rotation transformation on the current matrix around the
vector 0, 0, 1
 by the specified rotation rotZ in degrees.
6. Post-multiply a rotation transformation on the current matrix around the
vector 0, 1, 0
 by the specified rotation rotY in degrees.
7. Post-multiply a rotation transformation on the current matrix around the
vector 1, 0, 0
 by the specified rotation rotX in degrees.
8. Return the current matrix.

rotateFromVertor() and rotateFromVertorSelf() function
1. Post-multiply a rotation transformation on the current matrix.
 The rotation angle is determined by the angle between the vector (1,0)T and
(x,y)T
 in the clockwise direction.
2. Return the current matrix.

spec list:
- https://drafts.fxtf.org/geometry/#dom-dommatrix-rotateself
- https://drafts.fxtf.org/geometry/#dom-dommatrixreadonly-rotate
- https://drafts.fxtf.org/geometry/#dom-dommatrix-rotatefromvectorself
- https://drafts.fxtf.org/geometry/#dom-dommatrixreadonly-rotatefromvector

BUG=388780, 645878, 645882

Committed: https://crrev.com/66e25541d7b2df4771ad675d96a25ad32f42588f
Cr-Commit-Position: refs/heads/master@{#427289}
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[commit-bot: I haz the power, 2016-10-25 06:42:02]

Patchset 2 (id:??) landed as
https://crrev.com/66e25541d7b2df4771ad675d96a25ad32f42588f
Cr-Commit-Position: refs/heads/master@{#427289}