Clamp YUV videos to their visible size in the shader

cc/quads/yuv_video_draw_quad.cc

Index: cc/quads/yuv_video_draw_quad.cc
diff --git a/cc/quads/yuv_video_draw_quad.cc b/cc/quads/yuv_video_draw_quad.cc
index 6d3a828431072edcfb1d517e4e49b8841d505ee4..380a879c6f1694a5a7dbf2b0fee1958f563bffae 100644
--- a/cc/quads/yuv_video_draw_quad.cc
+++ b/cc/quads/yuv_video_draw_quad.cc
@@ -23,6 +23,7 @@ void YUVVideoDrawQuad::SetNew(const SharedQuadState* shared_quad_state,
                               const gfx::Rect& opaque_rect,
                               const gfx::Rect& visible_rect,
                               const gfx::RectF& tex_coord_rect,
+                              const gfx::SizeF& clamp_size,
                               unsigned y_plane_resource_id,
                               unsigned u_plane_resource_id,
                               unsigned v_plane_resource_id,
@@ -32,6 +33,7 @@ void YUVVideoDrawQuad::SetNew(const SharedQuadState* shared_quad_state,
   DrawQuad::SetAll(shared_quad_state, DrawQuad::YUV_VIDEO_CONTENT, rect,
                    opaque_rect, visible_rect, needs_blending);
   this->tex_coord_rect = tex_coord_rect;
+  this->clamp_size = clamp_size;
   this->y_plane_resource_id = y_plane_resource_id;
   this->u_plane_resource_id = u_plane_resource_id;
   this->v_plane_resource_id = v_plane_resource_id;
@@ -45,6 +47,7 @@ void YUVVideoDrawQuad::SetAll(const SharedQuadState* shared_quad_state,
                               const gfx::Rect& visible_rect,
                               bool needs_blending,
                               const gfx::RectF& tex_coord_rect,
+                              const gfx::SizeF& clamp_size,
                               unsigned y_plane_resource_id,
                               unsigned u_plane_resource_id,
                               unsigned v_plane_resource_id,
@@ -53,6 +56,7 @@ void YUVVideoDrawQuad::SetAll(const SharedQuadState* shared_quad_state,
   DrawQuad::SetAll(shared_quad_state, DrawQuad::YUV_VIDEO_CONTENT, rect,
                    opaque_rect, visible_rect, needs_blending);
   this->tex_coord_rect = tex_coord_rect;
+  this->clamp_size = clamp_size;
   this->y_plane_resource_id = y_plane_resource_id;
   this->u_plane_resource_id = u_plane_resource_id;
   this->v_plane_resource_id = v_plane_resource_id;
@@ -77,6 +81,7 @@ const YUVVideoDrawQuad* YUVVideoDrawQuad::MaterialCast(
 
 void YUVVideoDrawQuad::ExtendValue(base::debug::TracedValue* value) const {
   MathUtil::AddToTracedValue("tex_coord_rect", tex_coord_rect, value);
+  MathUtil::AddToTracedValue("clamp_size", clamp_size, value);
   value->SetInteger("y_plane_resource_id", y_plane_resource_id);
   value->SetInteger("u_plane_resource_id", u_plane_resource_id);
   value->SetInteger("v_plane_resource_id", v_plane_resource_id);