am: 56840e80

* commit '56840e80':
  Suppress line breaks in emoji + modifier

An emoji base with an emoji modifier renders as a single glyph and
thus should not be a line break. Current (Unicode 8) logic does
indicate a line break, so we override the results of the ICU line
break iterator. The code references a proposal to improve Unicode
behavior; when that is adopted and we upgrade ICU accordingly, the
special-case code should be deleted, but the tests can remain.

Bug: 27343378
Change-Id: I5de9c53e9a34c503816f9131e3d894e6f7a57d13

am: 0036da16

* commit '0036da16':
  Use color font if skin tone is specified.

If skin tone is specified, the base emoji should be emoji style even
if it is text presentation default emoji.

This patch also removes wrong test case which expects default emoji
presentation but it is controlled by family order in /etc/fonts.xml
and there is no special logic for default presentation in minikin.
Thus the default presentation unit test should not be in minikin.

Bug: 27342346

Change-Id: I74a2b2feab4d559535049e368cfd833063cce81c

am: 94d55255

* commit '94d55255':
  Suppress grapheme cluster breaks in emoji with modifiers

An emoji with a modifier should be treated as a single grapheme, i.e.
it should not be possible to place the cursor between the base and
modifier.  This patch implements the proposed Rule GB9c from Mark
Davis's proposal entitled "Fixing breaking properties for emoji",
L2/16-011R3.

The patch also skips over variation sequences attached the to the
preceding character, for computing grapheme cluster boundaries.

Bug: 26829153
Change-Id: Iff5bc2bb8e5246223a017c7cf33acfbf63817f16

am: dbf5c277

* commit 'dbf5c277':
  Support Hanb script.

am: 30bf8a7c

* commit '30bf8a7c':
  Suppress linebreaks in emoji ZWJ sequences

am: ea408fc1

* commit 'ea408fc1':
  Optimize: Use measureText instead of doLayout.

Due to the way emoji ZWJ sequences are defined, the ICU line breaking
algorithm determines that there are valid line breaks inside the
sequence. This patch suppresses these line breaks.

This is an adaptation of I225ebebc0f4186e4b8f48fee399c4a62b3f0218a
into the nyc-dev branch.

Bug: 25433289
Change-Id: I84b50b1e6ef13d436965eab389659d02a30d100f

With this CL, measureText is used for getRunAdvance,
getOffsetForAdvance and line breaking.

Bug: 24505153
Change-Id: Ib699f6b1391b46537736fc274cdb41686586b550

am: aa736d00

* commit 'aa736d00':
  Disable hyphenation when word overlaps style boundary

In cases when a word (as defined by the ICU break iterator) overlaps a
style boundary, the returned wordStart can be extend before the range
currently being measured for layout. When we try to hyphenate the
resulting substrings, we get a negative range, which crashes. This
patch disables hyphenation in this case.

Bug: 27237112
Change-Id: I76d04b39dd3b4d6d267aaaf4bebc9ab361891646

Hanb is a union of Han and Bopomofo.

Bug: 26687969
Change-Id: Ic696bcbbc9607f3842fd0115668b8e7bd917e62b

am: bcb024df

* commit 'bcb024df':
  Improve Paint.measureText and Paint.hasGlyph for variation sequences.

Add error logging on invalid cmap - DO NOT MERGE am: 48e53074 am: d60a48cc  -s ours am: 4741030f am: c2792665  -s ours am: c2f0c7a8 am: cb14adf0 am: 00e9a7cd  -s ours
am: 7f9834ae

* commit '7f9834ae':
  Add error logging on invalid cmap - DO NOT MERGE

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am: 00e9a7cd  -s ours

* commit '00e9a7cd':
  Add error logging on invalid cmap - DO NOT MERGE

am: 2f0604dc

* commit '2f0604dc':
  Add error logging on invalid cmap

am: c88ef135

* commit 'c88ef135':
  Add penalty for breaks in URLs and email addresses

Add error logging on invalid cmap - DO NOT MERGE am: 48e53074 am: d60a48cc  -s ours am: 4741030f am: c2792665  -s ours am: c2f0c7a8
am: cb14adf0

* commit 'cb14adf0':
  Add error logging on invalid cmap - DO NOT MERGE

Add error logging on invalid cmap - DO NOT MERGE am: 48e53074 am: d60a48cc  -s ours am: 4741030f am: c2792665  -s ours
am: c2f0c7a8

* commit 'c2f0c7a8':
  Add error logging on invalid cmap - DO NOT MERGE

Add error logging on invalid cmap - DO NOT MERGE am: 48e53074 am: d60a48cc  -s ours am: 4741030f
am: c2792665  -s ours

* commit 'c2792665':
  Add error logging on invalid cmap - DO NOT MERGE

am: c3433aca

* commit 'c3433aca':
  Add error logging on invalid cmap

am: 4741030f

* commit '4741030f':
  Add error logging on invalid cmap - DO NOT MERGE

am: c91a77cf

* commit 'c91a77cf':
  Add error logging on invalid cmap

am: d60a48cc  -s ours

* commit 'd60a48cc':
  Add error logging on invalid cmap - DO NOT MERGE

am: 734f0371

* commit '734f0371':
  Add error logging on invalid cmap

am: 48e53074

* commit '48e53074':
  Add error logging on invalid cmap - DO NOT MERGE

am: 6d15657e

* commit '6d15657e':
  Add line breaks to email addresses and URLs

am: 9c4cc648

* commit '9c4cc648':
  Special-case URLs and email addresses for line breaking

am: 57b6dae9

* commit '57b6dae9':
  Refine hyphenation around punctuation

Recent changes have added special cases for line breaks within URLs
and email addresses. Such breaks are undesirable when they can be
avoided, but at other times are needed to avoid huge gaps, or indeed
to make the line fit at all.

This patch assigns a penalty for such breaks, equal to the hyphenation
penalty. The mechanism is currently very simple, but would be easy to
fine-tune based on more detailed information about break quality.

Bug: 20126487
Bug: 20566159
Change-Id: I0d3323897737a2850f1e734fa17b96b065eabd9c

This change adds accceptable line breaks according to sections 7.42
(Dividing URLs and e-mail addresses) and 14.12 (URLs or DOIs and line
breaks) of the Chicago Manual of Style (16th ed.). In general, these
place breaks before punctuation symbols, and suppresses them after
hyphens.

Bug: 20126487
Bug: 20566159
Change-Id: I2d07d516b920a506a2f718c38fb435c5eb1ee1f8

Detect URLs and email addresses, and suppress both line breaking and
hyphenation within them.

Bug: 20126487
Bug: 20566159

Change-Id: I43629347a063dcf579e355e5b678d7195f453ad9

am: 2e5c6df0

* commit '2e5c6df0':