Roll src/third_party/ink/src/ 2b48039ad..f2cbfaa45 (46 commits)

https://chromium.googlesource.com/external/github.com/google/ink.git/+log/2b48039ad80d..f2cbfaa4517e

$ git log 2b48039ad..f2cbfaa45 --date=short --no-merges --format='%ad %ae %s'
2025-10-07 ink-open-source Add `StrokeInputBatch::Last()` and `First()` methods
2025-10-06 ink-open-source Automated Code Change
2025-10-06 ink-open-source Make `StrokeInputModeler` class concrete again, and move model-specific implementation behind a new `InputModelImpl` interface
2025-10-02 ink-open-source Automated Code Change
2025-10-02 ink-open-source Automated Code Change
2025-10-02 ink-open-source Ink: Add default value for C++ BrushPaint self_overlap parameter
2025-10-02 ink-open-source Split struct definitions out of `stroke_input_modeler.h`
2025-10-01 ink-open-source Automated Code Change
2025-10-01 ink-open-source Automated Code Change
2025-10-01 ink-open-source Add fuzz tests for sliding window and naive input modelers, and make them pass
2025-10-01 ink-open-source Automated Code Change
2025-09-30 ink-open-source Automated Code Change
2025-09-30 ink-open-source Make `SlidingWindowModel` non-experimental
2025-09-29 ink-open-source Automated Code Change
2025-09-26 ink-open-source Automated Code Change
2025-09-26 ink-open-source Add upsampling parameter to `ExperimentalSlidingWindowModel`
2025-09-26 ink-open-source Automated Code Change
2025-09-24 ink-open-source Upsample inputs in `SlidingWindowInputModeler`
2025-09-24 ink-open-source Fix `distance_traveled` calculation in `SlidingWindowInputModeler`
2025-09-24 ink-open-source Add window size parameter to `ExperimentalSlidingWindowModel`
2025-09-23 ink-open-source Increase parallelism for test execution
2025-09-22 ink-open-source Automated Code Change
2025-09-22 ink-open-source Automated Code Change
2025-09-22 ink-open-source Consolidate tests for conforming `StrokeInputModeler` implementations
2025-09-19 ink-open-source Implement `AbslStringify` for `BrushFamily::InputModel`
2025-09-19 ink-open-source Implement experimental sliding window input modeler
2025-09-18 sfreilich Use size_t less in InProgressStroke and StrokeInputBatch
2025-09-17 ink-open-source Add static `Point::FromOffset` factory method
2025-09-17 ink-open-source Don't construct a `Point`/`Vec` from explicit fields when we're already holding a `Point` or `Vec`
2025-09-17 sfreilich Clarify brush behaviors look at position/velocity/acceleration before offset
2025-09-17 ink-open-source Add `Vec::UnitVecFromDirection` static method
2025-09-16 ilist Automated Code Change
2025-09-16 ink-open-source Automated Code Change
2025-09-15 sfreilich Use degrees in Brush JNI
2025-09-15 sfreilich Fix missing dependency so that JNI_OnUnload gets called when appropriate
2025-09-15 ink-open-source JNI code to support `BrushPaint.selfOverlap` in Android renderers
2025-09-15 ink-open-source Expand doc comment on `StrokeInputBatch::MakeDeepCopy()` to explain when you'd want to use it
2025-09-12 ink-open-source Add `NaiveInputModeler`, a `StrokeInputModeler` implementation that does (almost) no modeling
2025-09-11 sfreilich Use degrees in Vec JNI
2025-09-11 ink-open-source Clarify some doc comments for `StrokeInputModeler`
2025-09-11 sfreilich Use degrees in Parallelogram JNI
2025-09-09 ink-open-source Make `ink::StrokeInputModeler` an abstract interface
2025-09-09 sfreilich Support stamping textures in native Skia renderer
2025-09-08 ink-open-source Share a single `StrokeInputModeler` among all brush coats in a stroke
2025-09-08 sfreilich Simplify logic for managing Skia uniform data
2025-09-08 sfreilich Rename is_stamping_particle_brush to is_particle_brush

Then fix the build by:

1) Updating third_party/ink/BUILD.gn for all the new files.
2) Updating pdf/pdf_ink_module_unittest.cc to use range-based for-loops
   instead of updating an index variable type.

Created with:
  roll-dep src/third_party/ink/src

Change-Id: I2d250795e771dbd93450a1fc30053ff2eded5565
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/7018145
Commit-Queue: Lei Zhang <thestig@chromium.org>
Reviewed-by: Andy Phan <andyphan@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1526612}