[3/5] Add translated rasterization support for RasterBuffer & below

This CL implements the muscle of transformed rasterization. RasterBuffer now
accepts a translation in addition to a scale factor when rasterizing into a
backing.

Arbitrary raster transformation is not planned for near future. Thus only
implementing scale & translate which already helps many common cases.

CQ_INCLUDE_TRYBOTS=master.tryserver.blink:linux_trusty_blink_rel

Review-Url: https://codereview.chromium.org/2563743004
Cr-Commit-Position: refs/heads/master@{#461673}

• cc/benchmarks/rasterize_and_record_benchmark_impl.cc[diff]
• cc/output/software_renderer.cc[diff]
• cc/raster/bitmap_raster_buffer_provider.cc[diff]
• cc/raster/gpu_raster_buffer_provider.cc[diff]
• cc/raster/gpu_raster_buffer_provider.h[diff]
• cc/raster/one_copy_raster_buffer_provider.cc[diff]
• cc/raster/one_copy_raster_buffer_provider.h[diff]
• cc/raster/raster_buffer.h[diff]
• cc/raster/raster_buffer_provider.cc[diff]
• cc/raster/raster_buffer_provider.h[diff]
• cc/raster/raster_buffer_provider_unittest.cc[diff]
• cc/raster/raster_source.cc[diff]
• cc/raster/raster_source.h[diff]
• cc/raster/raster_source_unittest.cc[diff]
• cc/raster/zero_copy_raster_buffer_provider.cc[diff]
• cc/tiles/tile_manager.cc[diff]
• cc/tiles/tile_manager_unittest.cc[diff]
• ui/gfx/BUILD.gn[diff]
• ui/gfx/geometry/BUILD.gn[diff]
• ui/gfx/geometry/axis_transform2d.cc[Added - diff]
• ui/gfx/geometry/axis_transform2d.h[Added - diff]
• ui/gfx/geometry/axis_transform2d_unittest.cc[Added - diff]
• ui/gfx/test/gfx_util.cc[diff]
• ui/gfx/test/gfx_util.h[diff]