[cc] Add nearest neighbor filtering for PictureLayer.

cc/output/gl_renderer.cc

Index: cc/output/gl_renderer.cc
diff --git a/cc/output/gl_renderer.cc b/cc/output/gl_renderer.cc
index a32778a437038b86816ea6c47aa522160e65c6fe..b1344ea9fb404a5c418974cd2191c861005d4039 100644
--- a/cc/output/gl_renderer.cc
+++ b/cc/output/gl_renderer.cc
@@ -1628,7 +1628,8 @@ void GLRenderer::DrawContentQuadAA(const DrawingFrame* frame,
   SetupQuadForAntialiasing(device_transform, quad, &local_quad, edge);
 
   ResourceProvider::ScopedSamplerGL quad_resource_lock(
-      resource_provider_, resource_id, GL_LINEAR);
+      resource_provider_, resource_id,
+      quad->nearest_neighbor ? GL_NEAREST : GL_LINEAR);
   SamplerType sampler =
       SamplerTypeFromTextureTarget(quad_resource_lock.target());
 
@@ -1712,7 +1713,8 @@ void GLRenderer::DrawContentQuadNoAA(const DrawingFrame* frame,
 
   bool scaled = (tex_to_geom_scale_x != 1.f || tex_to_geom_scale_y != 1.f);
   GLenum filter =
-      (scaled || !quad->quadTransform().IsIdentityOrIntegerTranslation())
+      (scaled || !quad->quadTransform().IsIdentityOrIntegerTranslation()) &&
+              !quad->nearest_neighbor
           ? GL_LINEAR
           : GL_NEAREST;